# VertexAIImageCaptioningChat

> **Class** in `langchain_google_vertexai`

📖 [View in docs](https://reference.langchain.com/python/langchain-google-vertexai/vision_models/VertexAIImageCaptioningChat)

Implementation of the Image Captioning model as a chat.

## Signature

```python
VertexAIImageCaptioningChat()
```

## Extends

- `_BaseVertexAIImageCaptioning`
- `BaseChatModel`

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[View source on GitHub](https://github.com/langchain-ai/langchain-google/blob/982e4015b249de8b9ba1e787746d8cc1f6d6b790/libs/vertexai/langchain_google_vertexai/vision_models.py#L187)