What are the best alternatives to Claude API?

The top alternatives to Claude API are OpenAI API, GitHub Copilot, LangChain, ranked by real usage data on Unfragile.

Are there free alternatives to Claude API?

Yes, 19 free alternatives to Claude API exist, including GitHub Copilot, LangChain, Vercel AI SDK.

20 alternatives ranked by real usage data. Claude API scores 92/100 — 2 tools score higher.

Anthropic's API for Claude models — tool use, vision, extended thinking, 200K context. Opus/Sonnet/Haiku.

20 alternatives

19 free options

2 score higher

Access to GPT-4o, o1/o3, DALL-E 3, Whisper, embeddings — function calling, assistants, fine-tuning.