> ## Documentation Index
> Fetch the complete documentation index at: https://docs.langchain.com/llms.txt
> Use this file to discover all available pages before exploring further.

# OpenRouter integrations

> Access models from multiple providers through OpenRouter's unified API using LangChain Python.

[OpenRouter](https://openrouter.ai/) is a unified API that provides access to models from multiple providers (OpenAI, Anthropic, Google, Meta, and more) through a single endpoint, with features like provider routing and reasoning token support.

## Chat models

<Columns cols={2}>
  <Card title="ChatOpenRouter" href="/oss/python/integrations/chat/openrouter" cta="Get started" icon="message" arrow>
    Access chat models from multiple providers through the OpenRouter unified API.
  </Card>
</Columns>

***

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