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vllm-omni/examples/offline_inference/qwen3_omni/README.md
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a3903810fe [Config Refactor][2/N] Pipeline + Deploy Config Schema (#2383)
Signed-off-by: lishunyang <lishunyang12@163.com>
Signed-off-by: reidliu41 <reid201711@gmail.com>
Signed-off-by: Alex Brooks <albrooks@redhat.com>
Co-authored-by: reidliu41 <reid201711@gmail.com>
Co-authored-by: xiaohajiayou <75477391+xiaohajiayou@users.noreply.github.com>
Co-authored-by: Alex Brooks <albrooks@redhat.com>
Co-authored-by: Hongsheng Liu <liuhongsheng4@huawei.com>
2026-04-19 14:36:00 +12:00

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# Qwen3-Omni
## Setup
Please refer to the [stage configuration documentation](https://docs.vllm.ai/projects/vllm-omni/en/latest/configuration/stage_configs/) to configure memory allocation appropriately for your hardware setup.
## Run examples
### Multiple Prompts
Get into the example folder
```bash
cd examples/offline_inference/qwen3_omni
```
Then run the command below. Note: for processing large volume data, it uses py_generator mode, which will return a python generator from Omni class.
```bash
bash run_multiple_prompts.sh
```
### Single Prompt
Get into the example folder
```bash
cd examples/offline_inference/qwen3_omni
```
Then run the command below.
```bash
bash run_single_prompt.sh
```
If you have not enough memory, you can set thinker with tensor parallel. Just run the command below.
```bash
bash run_single_prompt_tp.sh
```
### Modality control
If you want to control output modalities, e.g. only output text, you can run the command below:
```bash
python end2end.py --output-wav output_audio \
--query-type use_audio \
--modalities text
```
#### Using Local Media Files
The `end2end.py` script supports local media files (audio, video, image) via command-line arguments:
```bash
# Use local video file
python end2end.py --query-type use_video --video-path /path/to/video.mp4
# Use local image file
python end2end.py --query-type use_image --image-path /path/to/image.jpg
# Use local audio file
python end2end.py --query-type use_audio --audio-path /path/to/audio.wav
# Combine multiple local media files
python end2end.py --query-type mixed_modalities \
--video-path /path/to/video.mp4 \
--image-path /path/to/image.jpg \
--audio-path /path/to/audio.wav
```
If media file paths are not provided, the script will use default assets. Supported query types:
- `use_video`: Video input
- `use_image`: Image input
- `use_audio`: Audio input
- `text`: Text-only query
- `multi_audios`: Multiple audio inputs
- `mixed_modalities`: Combination of video, image, and audio inputs
### Async-chunk (offline)
For true stage-level concurrency -- where downstream stages (Talker, Code2Wav)
start **before** the upstream stage (Thinker) finishes -- use the async_chunk
example. This requires:
1. A deploy config YAML with ``async_chunk: true`` (e.g.
``qwen3_omni_moe.yaml``).
2. Hardware that matches the config (e.g. 2x H100 for the default 3-stage
config).
The async_chunk example uses ``AsyncOmni`` instead of the synchronous ``Omni``
class, which enables the async orchestrator to receive stage-0 intermediate
outputs and trigger downstream stages early. Chunk data flows directly between
stage workers via the in-worker ``OmniChunkTransferAdapter`` / connector,
**not** through the orchestrator.
#### Single prompt
```bash
cd examples/offline_inference/qwen3_omni
bash run_single_prompt_async_chunk.sh
```
#### Multiple prompts with concurrency control
```bash
bash run_multiple_prompts_async_chunk.sh --max-in-flight 4
```
#### Text-only output (skip audio generation)
```bash
python end2end_async_chunk.py --query-type text --modalities text
```
#### Custom stage config
```bash
python end2end_async_chunk.py \
--query-type use_audio \
--deploy-config /path/to/your_deploy_config.yaml
```
> **Note**: The synchronous ``end2end.py`` (using ``Omni``) is still the
> recommended entry point for non-async-chunk workflows. Only use the
> async_chunk example when you need the stage-level concurrency semantics
> described in PR #962 / #1151.