LangChain

An open-source library designed for building applications using language models (LLMs) like GPT-4. LangChain makes it possible to link large models with external data (e.g., databases, files, APIs) and create complex conversational flows and AI agents. It works well in applications like chatbots, AI assistants, semantic search engines, or for automating processes. It offers ready-made components for managing context, memory, sentence chains, and integrations with tools (such as OpenAI, Pincecone, Weaviate, Chroma, or Google Search). Thanks to its modular architecture, LangChain enables us to quickly build flexible solutions based on artificial intelligence — both in Python and TypeScript.