Caching and Cost
Two independent caches matter in a LangChain app, and they solve different problems.
Two independent caches matter in a LangChain app, and they solve different problems.
Tokens are the smallest units of a C++ program. Keywords are reserved words with special meaning that cannot be used as identifiers.
stream (sync) and astream (async) yield output incrementally instead of waiting for the whole result. For a chat model alone, that means tokens as they're generated: