Exa AI
Semantic search engine and API for AI agents using embedding-based retrieval
Why choose Exa AI
Exa (formerly Metaphor) is a search engine and API designed for AI agents, using embeddings-based search to find semantically similar content across the web. Unlike keyword search, Exa understands meaning and context, returning relevant links and content that AI agents can use to research topics, find similar companies, and gather information.
- Semantic search finds relevant content better
- Great for research agents
- Clean content extraction
- Unique similarity-based search
Where it falls short
- Different mental model than keyword search
- Less suited for very specific queries
- Pro pricing needed for production
Best for these users
Pricing overview
Free tier with 1,000 queries/month. Pro starts at $50/month.
Check current pricing →Key features
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The verdict
Exa AI is a solid choice for ai researchers who need semantic search finds relevant content better. At freemium, it delivers good value. Main caveat: different mental model than keyword search. Compare with alternatives before committing.