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nav:
- Home: README.md
- User Guide:
- Getting Started:
- getting_started/quickstart.md
- getting_started/installation
- Examples:
- examples/README.md
- Offline Inference:
- Qwen2.5-Omni: user_guide/examples/offline_inference/qwen2_5_omni.md
- Online Serving: user_guide/examples/online_serving/README.md
- General:
- usage/*
- Configuration:
- configuration/README.md
- configuration/*
- Models:
- models/supported_models.md
- Features: features
- Developer Guide:
- contributing/README.md
- General:
- glob: contributing/*
flatten_single_child_sections: true
- Model Implementation:
- contributing/model/README.md
- CI: contributing/ci
- Design Documents: design
- Docs Guide: contributing/DOCS_GUIDE.md
- API Reference:
- api/README.md
- api/vllm_omni
- CLI Reference: cli
- Community:
- community/*
- Blog: https://blog.vllm.ai
- Forum: https://discuss.vllm.ai
- Slack: https://slack.vllm.ai
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---
hide:
- navigation
- toc
---
# Welcome to vLLM-Omni
<p align="center">
<picture>
<source media="(prefers-color-scheme: dark)" src="./source/logos/vllm-omni-logo-text-dark.png">
<img alt="vllm-omni" src="./source/logos/vllm-omni-logo-text-dark.png" width=55%>
</picture>
</p>
<h3 align="center">
Easy, fast, and cheap omni-modality model serving for everyone
</h3>
<p style="text-align:center">
<script async defer src="https://buttons.github.io/buttons.js"></script>
<a class="github-button" href="https://github.com/vllm-project/vllm-omni" data-show-count="true" data-size="large" aria-label="Star">Star</a>
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</p>
## About
[vLLM](https://github.com/vllm-project/vllm) was originally designed to support large language models for text-based autoregressive generation tasks. vLLM-Omni extends its support for omni-modality model inference and serving:
- **Omni-modality**: Text, image, video, and audio data processing
- **Non-autoregressive Architectures**: extend the AR support of vLLM to Diffusion Transformers (DiT) and other parallel generation models
- **Heterogeneous outputs**: from traditional text generation to multimodal outputs
<p align="center">
<picture>
<img alt="vllm-omni" src="./source/architecture/omni-modality model architecture.png" width=55%>
</picture>
</p>
vLLM-omni is fast with:
- Seamless AR support for efficient KV Cache management with vLLM
- Pipelined stage execution overlapping
- Fully disaggregation based on omniConnector and dynamic resource allocation across stages
vLLM-omni is flexible and easy to use with:
- Seamless integration with popular Hugging Face models
- High-throughput serving with various decoding algorithms, including *parallel sampling*, *beam search*, and more
- Tensor, pipeline, data and expert parallelism support for distributed inference
- Streaming outputs
- OpenAI-compatible API server
vLLM-Omni seamlessly supports most popular open-source models on HuggingFace, including:
- Multi-modality generation models (e.g. Qwen-image)
- Omni-modality models (e.g. Qwen-omni)
For more information, checkout the following:
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# Summary
## Entry Points
Main entry points for vLLM-omni inference and serving.
- [vllm_omni.entrypoints.async_omni_llm.AsyncOmniLLM][]
- [vllm_omni.entrypoints.async_omni_llm.AsyncOmniStageLLM][]
- [vllm_omni.entrypoints.chat_utils.OmniAsyncMultiModalContentParser][]
- [vllm_omni.entrypoints.chat_utils.OmniAsyncMultiModalItemTracker][]
- [vllm_omni.entrypoints.chat_utils.parse_chat_messages_futures][]
- [vllm_omni.entrypoints.cli.serve.OmniServeCommand][]
- [vllm_omni.entrypoints.log_utils.OrchestratorMetrics][]
- [vllm_omni.entrypoints.omni_llm.OmniLLM][]
- [vllm_omni.entrypoints.omni_llm.OmniStageLLM][]
- [vllm_omni.entrypoints.omni_stage.OmniStage][]
- [vllm_omni.entrypoints.openai.serving_chat.OmniOpenAIServingChat][]
## Inputs
Input data structures for multi-modal inputs.
- [vllm_omni.inputs.data.OmniEmbedsPrompt][]
- [vllm_omni.inputs.data.OmniTokenInputs][]
- [vllm_omni.inputs.data.OmniTokensPrompt][]
- [vllm_omni.inputs.parse.parse_singleton_prompt_omni][]
- [vllm_omni.inputs.preprocess.OmniInputPreprocessor][]
## Engine
Engine classes for offline and online inference.
- [vllm_omni.engine.AdditionalInformationEntry][]
- [vllm_omni.engine.AdditionalInformationPayload][]
- [vllm_omni.engine.OmniEngineCoreRequest][]
- [vllm_omni.engine.PromptEmbedsPayload][]
- [vllm_omni.engine.arg_utils.AsyncOmniEngineArgs][]
- [vllm_omni.engine.arg_utils.OmniEngineArgs][]
- [vllm_omni.engine.output_processor.MultimodalOutputProcessor][]
- [vllm_omni.engine.output_processor.OmniRequestState][]
- [vllm_omni.engine.processor.OmniProcessor][]
## Core
Core scheduling and caching components.
- [vllm_omni.core.dit_cache_manager.DiTCacheManager][]
- [vllm_omni.core.sched.diffusion_scheduler.DiffusionScheduler][]
- [vllm_omni.core.sched.output.OmniNewRequestData][]
- [vllm_omni.core.sched.scheduler.OmniScheduler][]
## Model Executor
Model execution components.
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni.OmniOutput][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni.Qwen2_5OmniForConditionalGeneration][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_talker.Qwen2_5OmniTalkerForConditionalGeneration][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_thinker.Qwen2_5OmniAudioFeatureInputs][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_thinker.Qwen2_5OmniConditionalGenerationMixin][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_thinker.Qwen2_5OmniThinkerDummyInputsBuilder][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_thinker.Qwen2_5OmniThinkerForConditionalGeneration][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_thinker.Qwen2_5OmniThinkerMultiModalDataParser][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_thinker.Qwen2_5OmniThinkerMultiModalProcessor][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_thinker.Qwen2_5OmniThinkerProcessingInfo][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_token2wav.Qwen2_5OmniToken2WavBigVGANModel][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_token2wav.Qwen2_5OmniToken2WavDiTModel][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_token2wav.Qwen2_5OmniToken2WavForConditionalGenerationVLLM][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_5_omni_token2wav.Qwen2_5OmniToken2WavModel][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_old.Qwen2EmbeddingModel][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_old.Qwen2ForCausalLM][]
- [vllm_omni.model_executor.models.qwen2_5_omni.qwen2_old.Qwen2Model][]
## Configuration
Configuration classes.
- [vllm_omni.config.model.OmniModelConfig][]
## Workers
Worker classes and model runners for distributed inference.
- [vllm_omni.worker.gpu_ar_model_runner.GPUARModelRunner][]
- [vllm_omni.worker.gpu_ar_worker.GPUARWorker][]
- [vllm_omni.worker.gpu_diffusion_model_runner.GPUDiffusionModelRunner][]
- [vllm_omni.worker.gpu_diffusion_worker.GPUDiffusionWorker][]
- [vllm_omni.worker.gpu_model_runner.OmniGPUModelRunner][]
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# Summary
## Entry Points
Main entry points for vLLM-omni inference and serving.
- [vllm_omni.entrypoints.omni_llm.OmniLLM][]
- [vllm_omni.entrypoints.omni_llm.OmniStageLLM][]
- [vllm_omni.entrypoints.omni_stage.OmniStage][]
- [vllm_omni.entrypoints.cli.serve.OmniServeCommand][]
## Inputs
Input data structures for multi-modal inputs.
- [vllm_omni.inputs.data.OmniTokenInputs][]
- [vllm_omni.inputs.data.OmniTokensPrompt][]
- [vllm_omni.inputs.data.OmniEmbedsPrompt][]
- [vllm_omni.inputs.parse.parse_singleton_prompt_omni][]
- [vllm_omni.inputs.preprocess.OmniInputPreprocessor][]
## Engine
Engine classes for offline and online inference.
- [vllm_omni.engine.arg_utils.OmniEngineArgs][]
- [vllm_omni.engine.processor.OmniProcessor][]
- [vllm_omni.engine.output_processor.OmniRequestState][]
- [vllm_omni.engine.output_processor.MultimodalOutputProcessor][]
- [vllm_omni.engine.PromptEmbedsPayload][]
- [vllm_omni.engine.AdditionalInformationPayload][]
- [vllm_omni.engine.OmniEngineCoreRequest][]
## Core
Core scheduling and caching components.
- [vllm_omni.core.sched.scheduler.OmniScheduler][]
- [vllm_omni.core.sched.diffusion_scheduler.DiffusionScheduler][]
- [vllm_omni.core.sched.output.OmniNewRequestData][]
- [vllm_omni.core.dit_cache_manager.DiTCacheManager][]
## Model Executor
Model execution components.
- [vllm_omni.model_executor.models.qwen2_5_omni.Qwen2_5OmniForConditionalGeneration][]
- [vllm_omni.model_executor.models.qwen2_5_omni_talker.Qwen2_5OmniTalkerForConditionalGeneration][]
- [vllm_omni.model_executor.models.qwen2_5_omni_thinker.Qwen2_5OmniThinkerForConditionalGeneration][]
- [vllm_omni.model_executor.models.qwen2_5_omni_token2wav.Qwen2_5OmniToken2WavForConditionalGenerationVLLM][]
- [vllm_omni.model_executor.layers.mrope.MRotaryEmbedding][]
- [vllm_omni.model_executor.models.registry.OmniModelRegistry][]
## Configuration
Configuration classes.
- [vllm_omni.config.OmniModelConfig][]
## Workers
Worker classes and model runners for distributed inference.
- [vllm_omni.worker.gpu_ar_worker.GPUARWorker][]
- [vllm_omni.worker.gpu_diffusion_worker.GPUDiffusionWorker][]
- [vllm_omni.worker.gpu_model_runner.OmniGPUModelRunner][]
- [vllm_omni.worker.gpu_ar_model_runner.GPUARModelRunner][]
- [vllm_omni.worker.gpu_diffusion_model_runner.GPUDiffusionModelRunner][]
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# vLLM-Omni CLI Guide
The CLI for vLLM-Omni inherits from vllm with some additional arguments.
## serve
Starts the vLLM-Omni OpenAI Compatible API server.
Start with a model:
```bash
vllm serve Qwen/Qwen2.5-Omni-7B --omni
```
Specify the port:
```bash
vllm serve Qwen/Qwen2.5-Omni-7B --omni --port 8091
```
If you have custom stage configs file, launch the server with command below
```bash
vllm serve Qwen/Qwen2.5-Omni-7B --omni --stage-configs-path /path/to/stage_configs_file
```
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# Contact Us
- For technical questions and feature requests, please use GitHub [Issues](https://github.com/vllm-project/vllm-omni/issues)
- For discussing with fellow users, please use the [vLLM Forum](https://discuss.vllm.ai/)
- For coordinating contributions and development, please use [Slack](https://slack.vllm.ai/)
- For security disclosures, please use GitHub's [Security Advisories](https://github.com/vllm-project/vllm/security/advisories) feature
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# Meetups
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# Configuration Options
This section lists the most common options for running vLLM-Omni.
For options within a vLLM Engine. Please refer to [vLLM Configuration](https://docs.vllm.ai/en/v0.11.0/configuration/index.html)
Currently, the main options are maintained by stage configs for each model.
For specific example, please refer to [Qwen2.5-omni stage config](stage_configs/qwen2_5_omni.yaml)
For introduction, please check [Introduction for stage config](./stage_configs.md)
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# Stage configs for vLLM-Omni
In vLLM-Omni, it divides models in vLLM-omni into multiple stages, which are processed by different LLMEngines, DiffusionEngines or other kinds of engines. According to different types of stages, such as AR stage or DiT stage, each stage can choose corresponding schedulers, model workers to load into Engines with a plug-in way.
Therefore, the stage configs for a model have several main functions:
- Claim partition of stages and corresponding class implementation in the folder model_executor/models.
- The disaggregated configuration for each stage and the communication topology among them.
- Engine arguments for each engine within the stage.
- Input and output dependencies for each stage.
- Default input parameters.
If users want to modify some part of it. The custom stage_configs file can be input as input argument in both online and offline. Just like examples below:
For offline (Assume necessary dependencies have ben imported):
```python
model_name = "Qwen/Qwen2.5-Omni-7B"
omni_llm = OmniLLM(model=model_name, stage_configs_path="/path/to/custom_stage_configs.yaml")
```
For online serving:
```bash
vllm serve Qwen/Qwen2.5-Omni-7B --omni --port 8091 --stage-configs-path /path/to/stage_configs_file
```
Below is a specific example of stage_configs.yaml in Qwen2.5-omni.
```python
# stage config for running qwen2.5-omni with architecture of OmniLLM.
stage_args:
- stage_id: 0 # mark the unique id for each stage
runtime: # The disaggregated configuration
process: true # Run this stage in a separate process
devices: "0" # Visible devices for this stage (CUDA_VISIBLE_DEVICES/torch.cuda.set_device)
max_batch_size: 1 # the batch_size for offline inference
engine_args: # Engine arguments for a certain engine
model_stage: thinker
model_arch: Qwen2_5OmniForConditionalGeneration # The model implementation registered in model_executor/models/registry.py
worker_cls: vllm_omni.worker.gpu_ar_worker.GPUARWorker # The specific worker used
scheduler_cls: vllm_omni.core.sched.scheduler.OmniScheduler # The specific scehduler used
gpu_memory_utilization: 0.8 # The gpu memory allocation for the stage within a single chip
enforce_eager: true # Now we only support eager mode
trust_remote_code: true # Needed by huggingface config parsing
engine_output_type: latent # It claims that the stage will input latent hiddenstates besides token ids
enable_prefix_caching: false # For request with hiddenstates output, the prefix caching is not supported now
is_comprehension: true # If the stage is a text or multimodal comprehension module. If it is, the AsyncOmniLLM will use its tokenizer as default
final_output: true # If the stage has output as part of final outputs. If it is false, which means that the stage only works as a intermediate role.
final_output_type: text # What is the final output type. It can be text and audio now.
default_sampling_params: # sampling parameters for the stage. Their meaning aligns with vLLM.
temperature: 0.0
top_p: 1.0
top_k: -1
max_tokens: 2048
seed: 42
detokenize: True
repetition_penalty: 1.1
- stage_id: 1
runtime:
process: true
devices: "1"
max_batch_size: 3
engine_args:
model_stage: talker
model_arch: Qwen2_5OmniForConditionalGeneration
worker_cls: vllm_omni.worker.gpu_ar_worker.GPUARWorker
scheduler_cls: vllm_omni.core.sched.scheduler.OmniScheduler
gpu_memory_utilization: 0.8
enforce_eager: true
trust_remote_code: true
enable_prefix_caching: false
engine_output_type: latent
engine_input_source: [0]
custom_process_input_func: vllm_omni.model_executor.stage_input_processors.qwen2_5_omni.thinker2talker
default_sampling_params:
temperature: 0.9
top_p: 0.8
top_k: 40
max_tokens: 2048
seed: 42
detokenize: True
repetition_penalty: 1.05
stop_token_ids: [8294]
- stage_id: 2
runtime:
process: true
devices: "0" # Example: use a different GPU than the previous stage; use "0" if single GPU
max_batch_size: 1
engine_args:
model_stage: code2wav
model_arch: Qwen2_5OmniForConditionalGeneration
worker_cls: vllm_omni.worker.gpu_diffusion_worker.GPUDiffusionWorker
scheduler_cls: vllm_omni.core.sched.diffusion_scheduler.DiffusionScheduler
gpu_memory_utilization: 0.15
enforce_eager: true
trust_remote_code: true
enable_prefix_caching: false
engine_output_type: audio
engine_input_source: [1]
final_output: true
final_output_type: audio
default_sampling_params:
temperature: 0.0
top_p: 1.0
top_k: -1
max_tokens: 2048
seed: 42
detokenize: True
repetition_penalty: 1.1
# Top-level runtime config (concise): default windows and stage edges
runtime:
enabled: true
defaults:
window_size: -1 # Simplified: trigger downstream only after full upstream completion
max_inflight: 1 # Simplified: process serially within each stage
edges:
- from: 0 # thinker → talker: trigger only after receiving full input (-1)
to: 1
window_size: -1
- from: 1 # talker → code2wav: trigger only after receiving full input (-1)
to: 2
window_size: -1
```
## Stage Configuration Arguments
Each stage in the `stage_args` list contains the following configuration options:
### `stage_id`
A unique identifier for each stage in the multi-stage pipeline. Stages are numbered sequentially starting from 0, and this ID is used to reference stages in inter-stage dependencies (e.g., `engine_input_source`).
### `runtime`
Configuration for disaggregated execution of the stage, controlling how the stage is deployed and executed.
#### `runtime.process`
Whether to run this stage in a separate process. When set to `true`, the stage will be executed in an isolated process, enabling better resource isolation and parallel execution across different stages. This is essential for multi-GPU deployments where different stages run on different devices.
Default: `true`
#### `runtime.devices`
Visible devices for this stage, specified as a string. This controls which GPU devices are available to the stage process, similar to setting `CUDA_VISIBLE_DEVICES` or using `torch.cuda.set_device()`. For example, `"0"` uses GPU 0, `"1"` uses GPU 1, and `"0,1"` makes both GPUs 0 and 1 visible.
Default: `"0"`
#### `runtime.max_batch_size`
The maximum batch size for offline inference in this stage. This limits how many sequences can be processed together in a single batch during offline inference operations.
Default: `1`
### `engine_args`
Engine arguments for configuring the LLM engine, diffusion engine, or other engine types used by this stage.
#### `engine_args.model_stage`
The name identifier for this model stage within the multi-stage architecture. This is used internally to distinguish different stages of the same model (e.g., "thinker", "talker", "code2wav" in Qwen2.5-Omni).
#### `engine_args.model_arch`
The model architecture class name that is registered in `model_executor/models/registry.py`. This specifies which model implementation to use for this stage. The class must be registered in the model registry for vLLM-Omni to locate and instantiate it.
#### `engine_args.worker_cls`
The specific worker class to use for this stage. This determines how the model computations are executed. Examples include `vllm_omni.worker.gpu_ar_worker.GPUARWorker` for autoregressive stages and `vllm_omni.worker.gpu_diffusion_worker.GPUDiffusionWorker` for diffusion-based stages.
#### `engine_args.scheduler_cls`
The scheduler class to use for this stage. The scheduler manages request queuing, batching, and execution order. Examples include `vllm_omni.core.sched.scheduler.OmniScheduler` for standard stages and `vllm_omni.core.sched.diffusion_scheduler.DiffusionScheduler` for diffusion stages.
#### `engine_args.gpu_memory_utilization`
The fraction of GPU memory to allocate for this stage within a single GPU chip. This is a value between 0.0 and 1.0, where 0.8 means 80% of the GPU memory will be used by this stage. This allows fine-grained control over memory allocation when multiple stages share the same GPU or when reserving memory for other operations.
Default: `0.8`
#### `engine_args.enforce_eager`
Whether to enforce eager execution mode. When set to `true`, the engine will run in eager mode without using CUDA graphs or other compilation optimizations. Currently, vLLM-Omni only supports eager mode.
Default: `true`
#### `engine_args.trust_remote_code`
Whether to trust remote code when loading models from Hugging Face. This is required for models that use custom code in their configuration files. Set to `true` when loading models that require custom model implementations.
Default: `true`
#### `engine_args.engine_output_type`
Specifies the type of output produced by this stage's engine. This determines what kind of data flows to downstream stages. Possible values include `latent` (hidden states), `text` (tokenized text), and `audio` (audio waveforms). When set to `latent`, the stage outputs latent hidden states in addition to token IDs, which are consumed by downstream stages.
Default: `latent`
#### `engine_args.enable_prefix_caching`
Whether to enable prefix caching for this stage. Prefix caching can improve performance by caching KV cache for common prompt prefixes. However, for requests that output hidden states (when `engine_output_type` is `latent`), prefix caching is not currently supported and should be set to `false`.
Default: `false`
### `is_comprehension`
Whether this stage is a text or multimodal comprehension module. When set to `true`, the stage acts as a comprehension module that processes input text or multimodal content. If this is the first comprehension stage, `AsyncOmniLLM` will use its tokenizer as the default tokenizer for the entire pipeline.
Default: `true`
### `final_output`
Whether this stage produces output that is part of the final outputs returned to the user. When set to `false`, the stage only works as an intermediate stage, processing data that flows to downstream stages but not contributing directly to the final response.
Default: `true`
### `final_output_type`
The type of final output produced by this stage. This specifies what format the output will be in when returned to the user. Currently supported values are `text` (for text generation) and `audio` (for audio generation).
Default: `text`
### `default_sampling_params`
Default sampling parameters for this stage. These parameters control the generation behavior and align with vLLM's sampling parameter semantics. These defaults are used when no explicit sampling parameters are provided in the request.
#### `default_sampling_params.temperature`
Sampling temperature for controlling randomness. Lower values (e.g., 0.0) make the output more deterministic and focused, while higher values increase randomness.
Default: `0.0`
#### `default_sampling_params.top_p`
Nucleus sampling parameter. Only tokens with cumulative probability mass up to `top_p` are considered. This helps filter out low-probability tokens while maintaining diversity.
Default: `1.0`
#### `default_sampling_params.top_k`
Top-k sampling parameter. Only the top `k` most likely tokens are considered. Set to `-1` to disable top-k filtering and consider all tokens.
Default: `-1`
#### `default_sampling_params.max_tokens`
Maximum number of tokens to generate in this stage. This limits the length of the output sequence.
Default: `2048`
#### `default_sampling_params.seed`
Random seed for reproducible generation. When set, the random number generator will be initialized with this seed to ensure consistent outputs across runs.
Default: `42`
#### `default_sampling_params.detokenize`
Whether to detokenize the output tokens into text. When set to `true`, token IDs are converted back to readable text strings.
Default: `True`
#### `default_sampling_params.repetition_penalty`
Penalty applied to tokens that have already appeared in the generated sequence. Values greater than 1.0 discourage repetition, while values less than 1.0 encourage it. A value of 1.0 applies no penalty.
Default: `1.1`
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# stage config for running qwen2.5-omni with architecture of OmniLLM.
stage_args:
- stage_id: 0
runtime:
process: true # Run this stage in a separate process
devices: "0" # Visible devices for this stage (CUDA_VISIBLE_DEVICES/torch.cuda.set_device)
max_batch_size: 1
engine_args:
model_stage: thinker
model_arch: Qwen2_5OmniForConditionalGeneration
worker_cls: vllm_omni.worker.gpu_ar_worker.GPUARWorker
scheduler_cls: vllm_omni.core.sched.scheduler.OmniScheduler
gpu_memory_utilization: 0.8
enforce_eager: true # Now we only support eager mode
trust_remote_code: true
engine_output_type: latent
enable_prefix_caching: false
is_comprehension: true
final_output: true
final_output_type: text
default_sampling_params:
temperature: 0.0
top_p: 1.0
top_k: -1
max_tokens: 2048
seed: 42
detokenize: True
repetition_penalty: 1.1
- stage_id: 1
runtime:
process: true
devices: "1"
max_batch_size: 3
engine_args:
model_stage: talker
model_arch: Qwen2_5OmniForConditionalGeneration
worker_cls: vllm_omni.worker.gpu_ar_worker.GPUARWorker
scheduler_cls: vllm_omni.core.sched.scheduler.OmniScheduler
gpu_memory_utilization: 0.8
enforce_eager: true
trust_remote_code: true
enable_prefix_caching: false
engine_output_type: latent
engine_input_source: [0]
custom_process_input_func: vllm_omni.model_executor.stage_input_processors.qwen2_5_omni.thinker2talker
default_sampling_params:
temperature: 0.9
top_p: 0.8
top_k: 40
max_tokens: 2048
seed: 42
detokenize: True
repetition_penalty: 1.05
stop_token_ids: [8294]
- stage_id: 2
runtime:
process: true
devices: "0" # Example: use a different GPU than the previous stage; use "0" if single GPU
max_batch_size: 1
engine_args:
model_stage: code2wav
model_arch: Qwen2_5OmniForConditionalGeneration
worker_cls: vllm_omni.worker.gpu_diffusion_worker.GPUDiffusionWorker
scheduler_cls: vllm_omni.core.sched.diffusion_scheduler.DiffusionScheduler
gpu_memory_utilization: 0.15
enforce_eager: true
trust_remote_code: true
enable_prefix_caching: false
engine_output_type: audio
engine_input_source: [1]
final_output: true
final_output_type: audio
default_sampling_params:
temperature: 0.0
top_p: 1.0
top_k: -1
max_tokens: 2048
seed: 42
detokenize: True
repetition_penalty: 1.1
# Top-level runtime config (concise): default windows and stage edges
runtime:
enabled: true
defaults:
window_size: -1 # Simplified: trigger downstream only after full upstream completion
max_inflight: 1 # Simplified: process serially within each stage
edges:
- from: 0 # thinker → talker: trigger only after receiving full input (-1)
to: 1
window_size: -1
- from: 1 # talker → code2wav: trigger only after receiving full input (-1)
to: 2
window_size: -1
File renamed without changes.
+20 -4
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@@ -4,7 +4,7 @@ Thank you for your interest in contributing to vLLM-omni! This document provides
## Getting Started
### Development Environment
### Development Environment for vLLM
vLLM-omni uses `uv` as the environment manager, to create and manage Python environments. Please follow the documentation to install `uv`. After installing `uv`, you can create a new Python environment using the following commands:
@@ -19,8 +19,24 @@ Install vLLM from source:
git clone https://github.com/vllm-project/vllm.git
cd vllm
git checkout v0.11.0
VLLM_USE_PRECOMPILED=1 uv pip install -e .
```
Set up environment variables to get pre-built wheels. If there are internet problems, just download the whl file manually. And set VLLM_PRECOMPILED_WHEEL_LOCATION as your local absolute path of whl file.
```bash
export VLLM_PRECOMPILED_WHEEL_LOCATION=https://github.com/vllm-project/vllm/releases/download/v0.11.0/vllm-0.11.0-cp38-abi3-manylinux1_x86_64.whl
```
Install vllm with command below (If you have no existing PyTorch).
```bash
uv pip install --editable .
```
Install vllm with command below (If you already have PyTorch).
```bash
python use_existing_torch.py
uv pip install -r requirements/build.txt
uv pip install --no-build-isolation --editable .
```
### Development Environment for vLLM-Omni
Install vLLM-omni from source:
@@ -49,7 +65,7 @@ vLLM-omni's `pre-commit` hooks will now run automatically every time you commit.
```bash
pre-commit run # runs on staged files
pre-commit run -a # runs on all files (short for --all-files)
pre-commit run --show-diff-on-failure --color=always --all-files # runs on all files (short for --all-files)
```
### Documentation
@@ -163,7 +179,7 @@ The goal of the vLLM-omni team is to be a _transparent reviewing machine_. We wo
## Additional Resources
- [Design Documents](design_documents/index.md) - Architecture and design documentation
- [Design Documents](../design/index.md) - Architecture and design documentation
## Thank You
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@@ -0,0 +1,4 @@
# CI Failures
What should I do when a CI job fails on my PR, but I don't think my PR caused
the failure?
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@@ -0,0 +1 @@
# Summary
File renamed without changes.
File renamed without changes.
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@@ -0,0 +1,6 @@
# Examples
vLLM-Omni's examples are split into two categories:
- If you are using vLLM-Omni from within Python code, see the *Offline Inference* section.
- If you are using vLLM-Omni from an HTTP application or client, see the *Online Serving* section.
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@@ -0,0 +1,3 @@
# Features
vLLM-Omni introduces new features to support multimodal comprehension and generation models inference and serving.
@@ -0,0 +1,4 @@
nav:
- README.md
- gpu.md
- npu.md
@@ -0,0 +1,7 @@
# Installation
vLLM supports the following hardware platforms:
- [GPU](gpu.md)
- [NVIDIA CUDA](gpu.md#nvidia-cuda)
- [Ascend NPU](npu.md)
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@@ -0,0 +1,49 @@
# GPU
vLLM-Omni is a Python library that supports the following GPU variants. Select your GPU type to see vendor specific instructions:
[](){ #nvidia-cuda }
=== "NVIDIA CUDA"
--8<-- "docs/getting_started/installation/gpu/cuda.inc.md:installation"
## Requirements
- OS: Linux
- Python: 3.12
!!! note
vLLM-Omni does not support Windows natively.
=== "NVIDIA CUDA"
--8<-- "docs/getting_started/installation/gpu/cuda.inc.md:requirements"
## Set up using Python
### Create a new Python environment
--8<-- "docs/getting_started/installation/python_env_setup.inc.md"
=== "NVIDIA CUDA"
--8<-- "docs/getting_started/installation/gpu/cuda.inc.md:set-up-using-python"
### Pre-built wheels
=== "NVIDIA CUDA"
--8<-- "docs/getting_started/installation/gpu/cuda.inc.md:pre-built-wheels"
[](){ #build-from-source }
### Build wheel from source
=== "NVIDIA CUDA"
--8<-- "docs/getting_started/installation/gpu/cuda.inc.md:build-wheel-from-source"
## Set up using Docker
### Pre-built images
@@ -0,0 +1,73 @@
# --8<-- [start:installation]
vLLM-Omni mainly contains python implementations for framework and models.
# --8<-- [end:installation]
# --8<-- [start:requirements]
- GPU: compute capability 7.0 or higher (e.g., V100, T4, RTX20xx, A100, L4, H100, etc.)
# --8<-- [end:requirements]
# --8<-- [start:set-up-using-python]
vLLM-Omni depends vLLM. So please follow instructions below mainly for vLLM.
!!! note
PyTorch installed via `conda` will statically link `NCCL` library, which can cause issues when vLLM tries to use `NCCL`. See <gh-issue:8420> for more details.
In order to be performant, vLLM has to compile many cuda kernels. The compilation unfortunately introduces binary incompatibility with other CUDA versions and PyTorch versions, even for the same PyTorch version with different building configurations.
Therefore, it is recommended to install vLLM and vLLM-Omni with a **fresh new** environment. If either you have a different CUDA version or you want to use an existing PyTorch installation, you need to build vLLM from source. See [build-from-source-vllm](https://docs.vllm.ai/en/stable/getting_started/installation/gpu/#build-wheel-from-source) for more details.
# --8<-- [start:pre-built-wheels]
## Installation of vLLM
Now we build it based on vLLM v0.11.0. Please install it with command below.
```bash
uv pip install vllm==0.11.0 --torch-backend=auto
```
## Installation of vLLM-Omni
```bash
uv pip install vllm-omni
```
# --8<-- [end:pre-built-wheels]
# --8<-- [start:build-wheel-from-source]
## Installation of vLLM
If you want to check or debug with source code of vLLM, install stable release version of vllm with 0.11.0 from source with pre-built wheel file.
```bash
git clone https://github.com/vllm-project/vllm.git
cd vllm
git checkout v0.11.0
```
Set up environment variables to get pre-built wheels. If there are internet problems, just download the whl file manually. And set VLLM_PRECOMPILED_WHEEL_LOCATION as your local absolute path of whl file.
```bash
export VLLM_PRECOMPILED_WHEEL_LOCATION=https://github.com/vllm-project/vllm/releases/download/v0.11.0/vllm-0.11.0-cp38-abi3-manylinux1_x86_64.whl
```
Install vllm with command below (If you have no existing PyTorch).
```bash
uv pip install --editable .
```
Install vllm with command below (If you already have PyTorch).
```bash
python use_existing_torch.py
uv pip install -r requirements/build.txt
uv pip install --no-build-isolation --editable .
```
## Installation of vLLM-omni
Install additional requirements for vllm-omni
```bash
git clone https://github.com/vllm-project/vllm-omni.git
cd vllm_omni
uv pip install -e .
```
# --8<-- [end:build-wheel-from-source]
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@@ -0,0 +1,3 @@
# Ascend-NPU
vLLM-Omni is a Python library that supports the following NPU variants. Select your NPU type to see vendor specific instructions:
@@ -0,0 +1,5 @@
# --8<-- [start:installation]
vLLM-Omni mainly contains python implementations for framework and models.
# --8<-- [end:installation]
@@ -0,0 +1,6 @@
It's recommended to use [uv](https://docs.astral.sh/uv/), a very fast Python environment manager, to create and manage Python environments. Please follow the [documentation](https://docs.astral.sh/uv/#getting-started) to install `uv`. After installing `uv`, you can create a new Python environment using the following commands:
```bash
uv venv --python 3.12 --seed
source .venv/bin/activate
```
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@@ -0,0 +1,23 @@
# Quickstart
This guide will help you quickly get started with vLLM-Omni to perform:
- Offline batched inference
- Online serving using OpenAI-compatible server
## Prerequisites
- OS: Linux
- Python: 3.12
## Installation
Please refer to [installation](installation/README.md)
## Offline Inference
Please refer to [offline inference](../user_guide/examples/offline_inference/qwen2_5_omni.md)
## Online Serving with OpenAI-Completions API
Please refer to [online serving](../user_guide/examples/online_serving/README.md)
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@@ -1,32 +0,0 @@
# Welcome to vLLM-omni
**vLLM-omni** extends vLLM capabilities to support multi-modality model inference and serving, particularly focusing on non-autoregressive structures and non-textual outputs. It aims to support:
- **Multi-modal Models**: Text, image, video, audio, and sensor data processing
- **Non-autoregressive Architectures**: Diffusion Transformers (DiT) and other parallel generation models
- **Heterogeneous Outputs**: Beyond traditional text generation to multimodal outputs
## <span class="twemoji">🎯</span> Key Features
### Multi-Engine Support
- **Autoregressive Engine**: Traditional text generation with enhanced KV-caching
- **Diffusion Engine**: Support for DiT models and iterative generation
- **Hybrid Engine**: Combined AR+DiT processing pipelines
### Modality Processing
- **Text**: Advanced tokenization and embedding generation
- **Image**: Vision encoder integration (CLIP, etc.)
- **Audio**: Speech processing and audio embedding
## <span class="twemoji">🤖</span> Supported Models
- Qwen-omni (Thinker-Talker-Codec structure)
- HunyunaImage 3.0 (Ongoing)
- Qwen-Image (Ongoing)
## <span class="twemoji">📚</span> Documentation Navigation
- To run open-source models on vLLM-Omni, we recommend starting with the [:material-code-tags: User Quide](user_guide/getting_started/quickstart.md)
- To develop and contribute to vLLM-Omni, we recommend starting with the [:material-tools: Developer Guide](contributing/README.md)
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@@ -0,0 +1,268 @@
# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM-omni project
"""
Hook to automatically generate docs/api/README.md from the codebase.
This script scans the vllm_omni module for public classes and functions,
categorizes them, and generates a summary README file.
"""
import ast
import logging
from pathlib import Path
logger = logging.getLogger("mkdocs")
ROOT_DIR = Path(__file__).parent.parent.parent.parent
API_README_PATH = ROOT_DIR / "docs" / "api" / "README.md"
# Category mappings: module prefix -> category name and description
CATEGORIES = {
"entrypoints": {
"name": "Entry Points",
"description": "Main entry points for vLLM-omni inference and serving.",
},
"inputs": {
"name": "Inputs",
"description": "Input data structures for multi-modal inputs.",
},
"engine": {
"name": "Engine",
"description": "Engine classes for offline and online inference.",
},
"core": {
"name": "Core",
"description": "Core scheduling and caching components.",
},
"model_executor": {
"name": "Model Executor",
"description": "Model execution components.",
},
"config": {
"name": "Configuration",
"description": "Configuration classes.",
},
"worker": {
"name": "Workers",
"description": "Worker classes and model runners for distributed inference.",
},
}
class APIVisitor(ast.NodeVisitor):
"""AST visitor to extract public classes and module-level functions."""
def __init__(self, module_path: str):
self.module_path = module_path
self.classes: list[str] = []
self.functions: list[str] = []
self._class_stack: list[str] = [] # Track nested class definitions
def visit_ClassDef(self, node: ast.ClassDef) -> None:
"""Visit class definitions."""
if not node.name.startswith("_"):
self.classes.append(f"{self.module_path}.{node.name}")
# Track that we're entering a class
self._class_stack.append(node.name)
self.generic_visit(node)
# Remove from stack when done visiting
self._class_stack.pop()
def visit_FunctionDef(self, node: ast.FunctionDef) -> None:
"""Visit function definitions - only collect module-level functions."""
# Only collect if we're not inside a class (stack is empty)
if not self._class_stack and not node.name.startswith("_"):
self.functions.append(f"{self.module_path}.{node.name}")
self.generic_visit(node)
def visit_AsyncFunctionDef(self, node: ast.AsyncFunctionDef) -> None:
"""Visit async function definitions - only collect module-level functions."""
# Only collect if we're not inside a class (stack is empty)
if not self._class_stack and not node.name.startswith("_"):
self.functions.append(f"{self.module_path}.{node.name}")
self.generic_visit(node)
def parse_file_for_symbols(file_path: Path, module_path: str) -> tuple[list[str], list[str]]:
"""
Parse a Python file and extract public classes and functions.
Returns:
Tuple of (classes, functions)
"""
try:
# If this is __init__.py, use parent module path
if file_path.name == "__init__.py":
# Remove .__init__ from module path
if module_path.endswith(".__init__"):
module_path = module_path[:-9]
with open(file_path, encoding="utf-8") as f:
content = f.read()
tree = ast.parse(content, filename=str(file_path))
visitor = APIVisitor(module_path)
visitor.visit(tree)
return visitor.classes, visitor.functions
except Exception as e:
logger.debug(f"Could not parse {file_path}: {e}")
return [], []
def scan_package(package_name: str = "vllm_omni") -> dict[str, list[str]]:
"""
Scan the vllm_omni package and categorize public symbols.
Returns:
Dict mapping category names to lists of symbol full names
"""
categorized: dict[str, list[str]] = {cat["name"]: [] for cat in CATEGORIES.values()}
try:
# Find the package directory
package_path = ROOT_DIR / package_name
if not package_path.exists():
logger.warning(f"Package path not found: {package_path}")
return categorized
# Walk through all Python files
for py_file in package_path.rglob("*.py"):
# Skip __init__.py and private modules
if py_file.name.startswith("_") and py_file.name != "__init__.py":
continue
# Get module path
relative_path = py_file.relative_to(ROOT_DIR)
module_path = str(relative_path.with_suffix("")).replace("/", ".").replace("\\", ".")
# Handle __init__.py - use parent module path
if py_file.name == "__init__.py":
# Remove .__init__ from module path
if module_path.endswith(".__init__"):
module_path = module_path[:-9]
# Determine category from module path
category = None
for prefix, cat_info in CATEGORIES.items():
if prefix in module_path:
category = cat_info["name"]
break
if not category:
continue
# Parse file for symbols
classes, functions = parse_file_for_symbols(py_file, module_path)
# Filter out internal implementation classes
# Skip classes that look like internal components (DiT layers, etc.)
internal_patterns = [
"Block",
"Layer",
"Net",
"Embedding",
"Norm",
"Activation",
"Solver",
"Pooling",
"Attention",
"MLP",
"DecoderLayer",
"InputEmbedding",
"TimestepEmbedding",
"CodecEmbedding",
"DownSample",
"UpSample",
"Res2Net",
"SqueezeExcitation",
"TimeDelay",
"TorchActivation",
"SnakeBeta",
"SinusPosition",
"RungeKutta",
"AMPBlock",
"AdaLayerNorm",
]
# Add classes (filter out internal ones)
for class_name in classes:
class_short_name = class_name.split(".")[-1]
# Skip if it matches internal patterns (unless it's a main model class)
if any(pattern in class_short_name for pattern in internal_patterns):
# But include main model classes
if not any(
main_class in class_short_name
for main_class in [
"ForConditionalGeneration",
"Model",
"Registry",
"Worker",
"Runner",
"Scheduler",
"Manager",
"Processor",
"Config",
]
):
continue
categorized[category].append(class_name)
# Add important functions (parse, preprocess, etc.)
for func_name in functions:
# Include functions that match certain patterns
if any(keyword in func_name.lower() for keyword in ["parse", "preprocess"]):
categorized[category].append(func_name)
# Sort symbols within each category
for category in categorized:
categorized[category].sort()
except Exception as e:
logger.error(f"Error scanning package: {e}", exc_info=True)
return categorized
def generate_readme(categorized: dict[str, list[str]]) -> str:
"""Generate the API README markdown content."""
lines = ["# Summary", ""]
# Generate sections for each category
for prefix, cat_info in CATEGORIES.items():
category_name = cat_info["name"]
description = cat_info["description"]
symbols = categorized.get(category_name, [])
if not symbols:
continue
lines.append(f"## {category_name}")
lines.append("")
lines.append(description)
lines.append("")
for symbol in symbols:
lines.append(f"- [{symbol}][]")
lines.append("")
return "\n".join(lines)
def on_startup(command, dirty: bool):
"""MkDocs hook entry point."""
logger.info("Generating API README documentation")
# Scan the package
categorized = scan_package()
# Generate README content
content = generate_readme(categorized)
# Write to file
API_README_PATH.parent.mkdir(parents=True, exist_ok=True)
with open(API_README_PATH, "w", encoding="utf-8") as f:
f.write(content)
logger.info(f"API README generated: {API_README_PATH.relative_to(ROOT_DIR)}")
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@@ -0,0 +1,121 @@
# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
"""
This is basically a port of MyST parser’s external URL resolution mechanism
(https://myst-parser.readthedocs.io/en/latest/syntax/cross-referencing.html#customising-external-url-resolution)
to work with MkDocs.
It allows Markdown authors to use GitHub shorthand links like:
- [Text](gh-issue:123)
- <gh-pr:456>
- [File](gh-file:path/to/file.py#L10)
These are automatically rewritten into fully qualified GitHub URLs pointing to
issues, pull requests, files, directories, or projects in the
`vllm-project/vllm-omni` repository.
The goal is to simplify cross-referencing common GitHub resources
in project docs.
"""
import regex as re
from mkdocs.config.defaults import MkDocsConfig
from mkdocs.structure.files import Files
from mkdocs.structure.pages import Page
def on_page_markdown(markdown: str, *, page: Page, config: MkDocsConfig, files: Files) -> str:
"""
Custom MkDocs plugin hook to rewrite special GitHub reference links
in Markdown.
This function scans the given Markdown content for specially formatted
GitHub shorthand links, such as:
- `[Link text](gh-issue:123)`
- `<gh-pr:456>`
And rewrites them into fully-qualified GitHub URLs with GitHub icons:
- `[:octicons-mark-github-16: Link text](https://github.com/vllm-project/vllm/issues/123)`
- `[:octicons-mark-github-16: Pull Request #456](https://github.com/vllm-project/vllm/pull/456)`
Supported shorthand types:
- `gh-issue`
- `gh-pr`
- `gh-project`
- `gh-dir`
- `gh-file`
Args:
markdown (str): The raw Markdown content of the page.
page (Page): The MkDocs page object being processed.
config (MkDocsConfig): The MkDocs site configuration.
files (Files): The collection of files in the MkDocs build.
Returns:
str: The updated Markdown content with GitHub shorthand links replaced.
"""
gh_icon = ":octicons-mark-github-16:"
gh_url = "https://github.com"
repo_url = f"{gh_url}/vllm-project/vllm-omni"
org_url = f"{gh_url}/orgs/vllm-project"
# Mapping of shorthand types to their corresponding GitHub base URLs
urls = {
"issue": f"{repo_url}/issues",
"pr": f"{repo_url}/pull",
"project": f"{org_url}/projects",
"dir": f"{repo_url}/tree/main",
"file": f"{repo_url}/blob/main",
}
# Default title prefixes for auto links
titles = {
"issue": "Issue #",
"pr": "Pull Request #",
"project": "Project #",
"dir": "",
"file": "",
}
# Regular expression to match GitHub shorthand links
scheme = r"gh-(?P<type>.+?):(?P<path>.+?)(#(?P<fragment>.+?))?"
inline_link = re.compile(r"\[(?P<title>[^\[]+?)\]\(" + scheme + r"\)")
auto_link = re.compile(f"<{scheme}>")
def replace_inline_link(match: re.Match) -> str:
"""
Replaces a matched inline-style GitHub shorthand link
with a full Markdown link.
Example:
[My issue](gh-issue:123) → [:octicons-mark-github-16: My issue](https://github.com/vllm-project/vllm/issues/123)
"""
url = f"{urls[match.group('type')]}/{match.group('path')}"
if fragment := match.group("fragment"):
url += f"#{fragment}"
return f"[{gh_icon} {match.group('title')}]({url})"
def replace_auto_link(match: re.Match) -> str:
"""
Replaces a matched autolink-style GitHub shorthand
with a full Markdown link.
Example:
<gh-pr:456> → [:octicons-mark-github-16: Pull Request #456](https://github.com/vllm-project/vllm/pull/456)
"""
type = match.group("type")
path = match.group("path")
title = f"{titles[type]}{path}"
url = f"{urls[type]}/{path}"
if fragment := match.group("fragment"):
url += f"#{fragment}"
return f"[{gh_icon} {title}]({url})"
# Replace both inline and autolinks
markdown = inline_link.sub(replace_inline_link, markdown)
markdown = auto_link.sub(replace_auto_link, markdown)
return markdown
@@ -0,0 +1,47 @@
/**
* edit_and_feedback.js
*
* Enhances MkDocs Material docs pages by:
*
* 1. Adding a "Question? Give us feedback" link
* below the "Edit" button.
*
* - The link opens a GitHub issue with a template,
* auto-filled with the current page URL and path.
*
* 2. Ensuring the edit button opens in a new tab
* with target="_blank" and rel="noopener".
*/
document.addEventListener("DOMContentLoaded", function () {
const url = window.location.href;
const page = document.body.dataset.mdUrl || location.pathname;
const feedbackLink = document.createElement("a");
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# Supported Models
vLLM-Omni supports unified multimodal comprehension and generation models across various tasks.
## Model Implementation
If vLLM-Omni natively supports a model, its implementation can be found in <gh-file:vllm-omni/model_executor/models>.
## List of Supported Models for Nvidia GPU
<style>
th {
white-space: nowrap;
min-width: 0 !important;
}
</style>
| Architecture | Models | Example HF Models |
|--------------|--------|-------------------|
| `Qwen2_5OmniForConditionalGeneration` | Qwen2.5-Omni | `Qwen/Qwen2.5-Omni-7B`, `Qwen/Qwen2.5-Omni-3B`|
## List of Supported Models for Ascend NPU
<style>
th {
white-space: nowrap;
min-width: 0 !important;
}
</style>
| Architecture | Models | Example HF Models |
|--------------|--------|-------------------|
| `Qwen2_5OmniForConditionalGeneration` | Qwen2.5-Omni | `Qwen/Qwen2.5-Omni-7B`, `Qwen/Qwen2.5-Omni-3B`|
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# Frequently Asked Questions
> Q: How many chips do I need to infer a model in vLLM-Omni?
A: Now, we support natively disaggregated deployment for different model stages within a model. There is a restriction that one chip can only has one AutoRegressive model stage. This is because the unified KV cache management of vLLM. Stages of other types can coexist with in a chip. The restriction will be resolved in later version.
> Q: When trying to run examples, I encounter error about backend of librosa or soundfile. How to solve it?
A: If you encounter error about backend of librosa, try to install ffmpeg with command below.
```
sudo apt update
sudo apt install ffmpeg
```
-8
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@@ -1,8 +0,0 @@
# Examples
vLLM-omni's examples are split into two categories:
- If you are using vLLM-omni from within Python code, see the *Offline Inference* section.
- If you are using vLLM-omni from an HTTP application or client, see the *Online Serving* section.
For detailed example documentation, check the [examples directory](https://github.com/vllm-project/vllm-omni/tree/main/examples) in the repository.
@@ -1,6 +1,6 @@
# Offline Example of vLLM-omni for Qwen2.5-omni
Source <https://github.com/vllm-project/vllm-omni/tree/main/examples\offline_inference\qwen2_5_omni>.
Source <https://github.com/vllm-project/vllm-omni/tree/main/examples/offline_inference/qwen2_5_omni>.
## 🛠️ Installation
@@ -36,29 +36,29 @@ Then run the command below.
bash run_single_prompt.sh
```
### FAQ
If you encounter error about backend of librosa, try to install ffmpeg with command below.
```
sudo apt update
sudo apt install ffmpeg
```
## Example materials
??? abstract "end2end.py"
``````py
--8<-- "examples\offline_inference\qwen2_5_omni\end2end.py"
--8<-- "examples/offline_inference/qwen2_5_omni/end2end.py"
``````
??? abstract "extract_prompts.py"
``````py
--8<-- "examples\offline_inference\qwen2_5_omni\extract_prompts.py"
``````
??? abstract "processing_omni.py"
``````py
--8<-- "examples\offline_inference\qwen2_5_omni\processing_omni.py"
--8<-- "examples/offline_inference/qwen2_5_omni/extract_prompts.py"
``````
??? abstract "run_multiple_prompts.sh"
``````sh
--8<-- "examples\offline_inference\qwen2_5_omni\run_multiple_prompts.sh"
--8<-- "examples/offline_inference/qwen2_5_omni/run_multiple_prompts.sh"
``````
??? abstract "run_single_prompt.sh"
``````sh
--8<-- "examples\offline_inference\qwen2_5_omni\run_single_prompt.sh"
``````
??? abstract "utils.py"
``````py
--8<-- "examples\offline_inference\qwen2_5_omni\utils.py"
--8<-- "examples/offline_inference/qwen2_5_omni/run_single_prompt.sh"
``````
@@ -1,97 +0,0 @@
# Offline Example of vLLM-omni for Qwen2.5-omni
Source <https://github.com/vllm-project/vllm-omni/tree/main/examples/offline_inference/qwen_2_5_omni>.
## 🛠️ Installation
### Environment setup
Use Docker to keep consistent basic environment (Optional, Recommended)
```bash
docker run --gpus all --ipc=host --network=host -v $source_dir:$container_dir --name $container_name -it nvcr.io/nvidia/pytorch:25.01-py3 bash
```
Set up basic uv environment
```bash
pip install uv
uv venv --python 3.12 --seed
source .venv/bin/activate
```
### Installation of vLLM (for users)
Now we build it based on vLLM v0.11.0. Please install it with command below.
```bash
uv pip install vllm==0.11.0 --torch-backend=auto
```
### Installation of vLLM (for developers)
If you want to check or debug with source code of vLLM, install stable release version of vllm with 0.11.0 from source with pre-built wheel file.
```bash
git clone https://github.com/vllm-project/vllm.git
cd vllm
git checkout v0.11.0
```
Set up environment variables to get pre-built wheels. If there are internet problems, just download the whl file manually. And set VLLM_PRECOMPILED_WHEEL_LOCATION as your local absolute path of whl file.
```bash
export VLLM_PRECOMPILED_WHEEL_LOCATION=https://github.com/vllm-project/vllm/releases/download/v0.11.0/vllm-0.11.0-cp38-abi3-manylinux1_x86_64.whl
```
Install vllm with command below (If you have no existing PyTorch).
```bash
uv pip install --editable .
```
Install vllm with command below (If you already have PyTorch).
```bash
python use_existing_torch.py
uv pip install -r requirements/build.txt
uv pip install --no-build-isolation --editable .
```
### Verification for successful installation of vLLM
Just run the command below. If no error, it demonstrates that the installation is successful.
```bash
python -c "import vllm._C"
```
### Installation of vLLM-omni
Install additional requirements for vllm-omni
```bash
git clone https://github.com/vllm-project/vllm-omni.git
cd vllm_omni
uv pip install -e .
```
## Run examples (Qwen2.5-omni)
Get into the example folder
```bash
cd examples/offline_inference/qwen_2_5_omni
```
Then run
```bash
bash run.sh
```
The output audio is saved in ./output_audio
## Example materials
??? abstract "end2end.py"
``````py
--8<-- "examples/offline_inference/qwen_2_5_omni/end2end.py"
``````
??? abstract "processing_omni.py"
``````py
--8<-- "examples/offline_inference/qwen_2_5_omni/processing_omni.py"
``````
??? abstract "run.sh"
``````sh
--8<-- "examples/offline_inference/qwen_2_5_omni/run.sh"
``````
??? abstract "utils.py"
``````py
--8<-- "examples/offline_inference/qwen_2_5_omni/utils.py"
``````
@@ -1,6 +1,6 @@
# Online serving Example of vLLM-omni for Qwen2.5-omni
Source <https://github.com/vllm-project/vllm-omni/blob/main/examples\online_serving\README.md>.
Source <https://github.com/vllm-project/vllm-omni/blob/main/examples/online_serving/README.md>.
## 🛠️ Installation
@@ -26,10 +26,55 @@ cd examples/online_serving
Send request via python
```bash
python openai_chat_completion_client_for_multimodal_generation.py
python openai_chat_completion_client_for_multimodal_generation.py --query-type mixed_modalities
```
Send request via curl
```bash
bash run_curl_multimodal_generation.sh
bash run_curl_multimodal_generation.sh mixed_modalities
```
### FAQ
If you encounter error about backend of librosa, try to install ffmpeg with command below.
```
sudo apt update
sudo apt install ffmpeg
```
## Run Local Web UI Demo
This Web UI demo allows users to interact with the model through a web browser.
### Running Gradio Demo
Once vllm and vllm-omni are installed, you can launch the web service built on AsyncOmniLLM by
```bash
python gradio_demo.py --model Qwen/Qwen2.5-Omni-7B --port 7861
```
Then open `http://localhost:7861/` on your local browser to interact with the web UI.
### Options
The gradio demo also supports running with an existing API server and can be customized with the following arguments.
```bash
python gradio_demo.py \
--model Qwen/Qwen2.5-Omni-7B \
--use-api-server \
--api-base http://localhost:8091/v1 \
--ip 127.0.0.1 \
--port 7861
```
- `--model`: Model name
- `--use-api-server`: If set, connect to an existing vLLM HTTP API server instead of running AsyncOmniLLM locally.
- `--api-base`: Base URL for vllm serve (only used when `use-api-server` is set, default: http://localhost:8091/v1)
- `--ip`: Host/IP for Gradio server (default: 127.0.0.1)
- `--port`: Port for Gradio server (default: 7861)
- `--stage-configs-path`: Path to custom stage configs YAML file (optional)
- `--share`: Share the Gradio demo publicly (creates a public link)
@@ -0,0 +1,7 @@
# Gradio Demo
Source <https://github.com/vllm-project/vllm-omni/blob/main/examples/online_serving/gradio_demo.py>.
``````py
--8<-- "examples/online_serving/gradio_demo.py"
``````
@@ -1,5 +0,0 @@
# Online Serving
## Available Examples
Online serving is under active development. Coming soon.
@@ -1,7 +1,7 @@
# OpenAI Chat Completion Client For Multimodal Generation
Source <https://github.com/vllm-project/vllm-omni/blob/main/examples\online_serving\openai_chat_completion_client_for_multimodal_generation.py>.
Source <https://github.com/vllm-project/vllm-omni/blob/main/examples/online_serving/openai_chat_completion_client_for_multimodal_generation.py>.
``````py
--8<-- "examples\online_serving\openai_chat_completion_client_for_multimodal_generation.py"
--8<-- "examples/online_serving/openai_chat_completion_client_for_multimodal_generation.py"
``````
@@ -1,55 +0,0 @@
# Quickstart
This guide will help you get started with vLLM-omni.
## Installation
Use Docker to keep consistent basic environment (Optional, Recommended)
```bash
docker run --gpus all --ipc=host --network=host -v $source_dir:$container_dir --rm --name $container_name -it nvcr.io/nvidia/pytorch:25.01-py3 bash
```
Set up basic uv environment
```bash
pip install uv
uv venv --python 3.12 --seed
source .venv/bin/activate
```
Install vLLM
```bash
uv pip install vllm==0.11.0 --torch-backend=auto
```
Install vLLM-omni
```bash
git clone https://github.com/vllm-project/vllm-omni.git
cd vllm_omni
uv pip install -e .
```
## Run examples (Qwen2.5-omni)
Get into the example folder
```bash
cd examples/offline_inference/qwen_2_5_omni
```
Then run.
```bash
bash run.sh
```
The output audio is saved in ./output_audio
## Next Steps
- Read the [architecture documentation](../../contributing/design_documents/vllm_omni_design.md)
- Check out the [API reference](../../api/overview.md)
- Explore the [examples](../examples/index.md)