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docs(tutorials): note OpenAI-compatible base_url for chat apps #1505

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docs(tutorials): note OpenAI-compatible base_url for chat apps #1505

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14 changes: 14 additions & 0 deletions content/develop/tutorials/llms/conversational-apps.md
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Expand Up @@ -331,6 +331,20 @@ Next, let's add our OpenAI API key to [Streamlit secrets](/develop/concepts/conn
OPENAI_API_KEY = "YOUR_API_KEY"
```

The OpenAI Python client also accepts a custom `base_url`. Point it at any
OpenAI-compatible endpoint — for example a local runtime, or a multi-model
gateway such as [DaoXE](https://daoxe.com) (`https://api.daoxe.com/v1`). Use an
API key **issued by that endpoint**, and set `openai_model` to a model id the
endpoint actually serves (`GET /v1/models`).

```python
client = OpenAI(
api_key=st.secrets["OPENAI_API_KEY"],
# Optional: OpenAI-compatible multi-model gateway (example: DaoXE)
# base_url="https://api.daoxe.com/v1",
)
```

### Write the app

Now let's write the app. We'll use the same code as before, but we'll replace the list of responses with a call to the OpenAI API. We'll also add a few more tweaks to make the app more ChatGPT-like.
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