> For the complete documentation index, see [llms.txt](https://docs.flowiseai.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flowiseai.com/integrations/llamaindex/chat-models.md).

# Chat Models

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Chat models take a list of messages as input and return a model-generated message as output. These models such as **gpt-3.5-turbo** or **gpt4** are powerful and cheaper than its predecessor Completions models such as **text-davincii-003**.

### Chat Model Nodes:

* [AzureChatOpenAI](/integrations/llamaindex/chat-models/azurechatopenai.md)
* [ChatAnthropic](/integrations/llamaindex/chat-models/chatanthropic.md)
* [ChatMistral](/integrations/llamaindex/chat-models/chatmistral.md)
* [ChatOllama](/integrations/llamaindex/chat-models/chatollama.md)
* [ChatOpenAI](/integrations/llamaindex/chat-models/chatopenai.md)
* [ChatTogetherAI](/integrations/llamaindex/chat-models/chattogetherai.md)
* [ChatGroq](/integrations/llamaindex/chat-models/chatgroq.md)