# ChatCompletionChunk

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/adapters/openai/ChatCompletionChunk)

Chat completion chunk.

## Signature

```python
ChatCompletionChunk()
```

## Extends

- `IndexableBaseModel`

## Properties

- `choices`

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[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/a6a6079511ac8a5c1293337f88096b8641562e77/libs/community/langchain_community/adapters/openai.py#L67)