# OpenAIRateLimitError

> **Class** in `langchain_openai`

📖 [View in docs](https://reference.langchain.com/python/langchain-openai/chat_models/base/OpenAIRateLimitError)

OpenAI rate-limit error classified as a LangChain model error.

## Signature

```python
OpenAIRateLimitError()
```

## Extends

- `openai.RateLimitError`
- `ModelRateLimitError`

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/170060e8387e06cd67b2458db0f232b2fa53fefd/libs/partners/openai/langchain_openai/chat_models/base.py#L664)