Does langgraph works with llm model?

[Yuan325]

Can I use langgraph with non-chat model and tools?

I have a current implementation of legacy langchain agent with llm model, initialize_agent(), and StructuredTool. Since agent is deprecated, i am thinking of migrating over to langgraph. However, it seems like the non-chat model doesn't automatically response with AIMessage(). Is this an expected behavior and the only way to solve this is to use a chat model?

[hwchase17]

yes! langgraph is a very low level orchestration framework, so you can do whatever you want inside it. see https://langchain-ai.github.io/langgraph/concepts/faq/
It will involve a bit more prompt engineering, and most of the examples are with chat models so there may not be many examples, but you can absolutley use it