Side-by-side comparison

Google's open-source framework for building AI features with flows, tools and evals in TypeScript, Go and Python.

Framework for composing LLM calls, tools and retrieval into applications; the largest LLM app ecosystem.

TypeScript port of LangChain for building LLM apps and agents in Node, browsers and edge runtimes.

Data framework for connecting LLMs to your documents: ingestion, indexing, retrieval and agentic workflows.