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vllm-omni/recipes/HiDream/HiDream-I1-Image.md
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# HiDream-I1-Full
> Text-to-image serving and benchmark
## Summary
- Vendor: HiDream.ai
- Model: `HiDream-ai/HiDream-I1-Full`
- Task: Text-to-image generation
- Mode: Online serving with the OpenAI-compatible API
- Maintainer: Community
## When to use this recipe
Use this recipe when you want a known-good starting point for serving
`HiDream-ai/HiDream-I1-Full` on a single 80 GB A800, validate the normal online-serving path.
## References
- Model: <https://huggingface.co/HiDream-ai/HiDream-I1-Full>
- Upstream or canonical docs:
[`docs/user_guide/examples/online_serving/text_to_image.md`](../../docs/user_guide/examples/online_serving/text_to_image.md)
- Related example under `examples/`:
[`examples/online_serving/text_to_image/README.md`](../../examples/online_serving/text_to_image/README.md)
## Hardware Support
This recipe currently documents one CUDA GPU serving configuration.
## GPU
### 1x A800 80GB
#### Environment
- OS: Linux
- Python: 3.10+
- Driver / runtime: NVIDIA CUDA environment with an A100 80 GB GPU
- vLLM version: Match the repository requirements for your checkout
- vLLM-Omni version or commit: Use the commit you are deploying from
#### Command
Start the baseline server:
```bash
export MODEL_NAME_OR_PATH=HiDream-ai/HiDream-I1-Full
vllm serve ${MODEL_NAME_OR_PATH} \
--omni \
--port 8092 \
--auxiliary-text-encoder meta-llama/Llama-3.1-8B-Instruct \
--tensor-parallel-size 1 \
--vae_use_slicing \
--vae_use_tiling
```
You can also use the example launcher and pass the extra flags through:
```bash
python examples/offline_inference/text_to_image/text_to_image.py \
--model HiDream-ai/HiDream-I1-Full \
--prompt "The setting sun of late autumn dyes the riverside with a warm orange hue" \
--seed 42 \
--guidance-scale 5.0 \
--tensor-parallel-size 1 \
--num-images-per-prompt 1 \
--num-inference-steps 50 \
--auxiliary-text-encoder meta-llama/Llama-3.1-8B-Instruct \
--output /workspace/mnt/cmss-wmd/result/output.png
```
#### Verification
Run the existing client example after the server is ready:
```bash
python examples/online_serving/text_to_image/openai_chat_client.py \
--server http://localhost:8092 \
--prompt "The setting sun of late autumn dyes the riverside with a warm orange hue" \
--output /tmp/hidream_i1_recipe.png
```
For a direct API smoke test:
```bash
curl -s http://localhost:8092/v1/chat/completions -H "Content-Type: application/json" -d '{
"messages": [
{"role": "user", "content": "The setting sun of late autumn dyes the riverside with a warm orange hue"}
],
"extra_body": {
"num_inference_steps": 50,
"seed": 42,
"height": 1024,
"width": 1024
}
}' | jq -r '.choices[0].message.content[0].image_url.url' | cut -d',' -f2- | base64 -d > output_online.png
```
#### Notes
- Key flags: `--auxiliary-text-encoder` designates the path for the auxiliary text model meta-llama/Llama-3.1-8B-Instruct. For HiDream-I1-Full, unspecified use defaults meta-llama/Llama-3.1-8B-Instruct (downloaded from official Hugging Face), and custom paths are supported.