Microsoft has Semantic Kernel: https://github.com/microsoft/semantic-kernel https://github.com/microsoft/semantic-kernel > The SK extensible programming model

Microsoft has Semantic Kernel: https://github.com/microsoft/semantic-kernel https://github.com/microsoft/semantic-kernel > The SK extensible programming model combines natural language semantic functions, traditional code native functions, and embeddings-based memory unlocking new potential and adding value to applications with AI. > SK supports prompt templating, function chaining, vectorized memory, and intelligent planning capabilities out of the box. I can't speak from experience whether it's better than LangChain, however.