Enable streaming responses

no
Summary: How to use streaming output with W&B Inference

Original Documentation

Documentation Index#

Fetch the complete documentation index at: https://docs.wandb.ai/llms.txt Use this file to discover all available pages before exploring further.

How to use streaming output with W&B Inference

Sometimes models take a while to generate a response. Setting the stream option to true allows you to receive the response as a stream of chunks, allowing you to incrementally display results instead of waiting for the entire response to be generated.

Streaming output is supported for all hosted models. We especially encourage its use with reasoning models, as non-streaming requests may timeout if the model thinks for too long before output starts.

    import openai

    client = openai.OpenAI(
        base_url='https://api.inference.wandb.ai/v1',
        api_key="<your-api-key>",  # Create an API key at https://wandb.ai/settings
    )

    stream = client.chat.completions.create(
        model="openai/gpt-oss-120b",
        messages=[
            {"role": "user", "content": "Tell me a rambling joke"}
        ],
        stream=True,
    )

    for chunk in stream:
        if chunk.choices:
            print(chunk.choices[0].delta.content or "", end="", flush=True)
        else:
            print(chunk) # Show CompletionUsage object
    ```
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```bash
    curl https://api.inference.wandb.ai/v1/chat/completions \
      -H "Content-Type: application/json" \
      -H "Authorization: Bearer <your-api-key>" \
      -d '{
        "model": "openai/gpt-oss-120b",
        "messages": [
          { "role": "user", "content": "Tell me a rambling joke" }
        ],
        "stream": true
      }'
    ```
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Link last verified June 7, 2026. View original ↗
Source: Weights & Biases Docs
Link last verified: 2026-03-04