Best LangChain alternatives

The Claude API gives developers access to Claude models for chat, tools, agents and vision.

The OpenAI platform offers GPT, image, speech and embedding models for developers.

Hugging Face hosts open models, datasets and Spaces, plus inference and training tools.

Best for: Central hub of the open AI community

Replicate runs thousands of open-source models in the cloud with a simple API.

Ollama downloads and runs open-weight language models on your own machine.

Pinecone stores and searches embeddings for retrieval-augmented generation at scale.