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*   LLMs

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LLMs
====

Large Language Models (LLMs) are a core component of LangChain. LangChain does not serve its own LLMs, but rather provides a standard interface for interacting with many different LLMs. To be specific, this interface is one that takes as input a string and returns a string.

There are lots of LLM providers (OpenAI, Cohere, Hugging Face, etc) - the `LLM` class is designed to provide a standard interface for all of them.

[Quick Start](/v0.1/docs/modules/model_io/llms/quick_start/)[​](#quick-start "Direct link to quick-start")
----------------------------------------------------------------------------------------------------------

Check out [this quick start](/v0.1/docs/modules/model_io/llms/quick_start/) to get an overview of working with LLMs, including all the different methods they expose

[Integrations](/v0.1/docs/integrations/llms/)[​](#integrations "Direct link to integrations")
---------------------------------------------------------------------------------------------

For a full list of all LLM integrations that LangChain provides, please go to the [Integrations page](/v0.1/docs/integrations/llms/)

How-To Guides[​](#how-to-guides "Direct link to How-To Guides")
---------------------------------------------------------------

We have several how-to guides for more advanced usage of LLMs. This includes:

*   [How to cache LLM responses](/v0.1/docs/modules/model_io/llms/llm_caching/)
*   [How to stream responses from an LLM](/v0.1/docs/modules/model_io/llms/streaming_llm/)

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