[Standard parameters for chat models](https://js.langchain.com/docs/concepts/chat_models/#standard-parameters): LLM should read this page when (needing to understand chat model interfaces in LangChain, implementing tool calling with LLMs, or requiring information about structured outputs from models) (Comprehensive guide to chat models in LangChain covering the model interface, key methods, standard parameters, tool calling capabilities, structured outputs, multimodality, context windows, and advanced topics like caching. Includes information on integrations with various providers and the standard message format system.)

