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Exa vs Mistral

Exa scores higher on the AgentReady, 92/100 against 48/100. They differ on 17 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Exa. Exa is a custom search engine built for AIs, offering an API to search the largest index of public web and private information.

Mistral. We help organizations build tailored AI systems to solve the world's hardest problems.

Where Exa is ahead

Exa passes mcp discoverable, and Mistral does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented and limits / constraints documented. Mistral misses those.

And on adopt, self-service signup, programmatic credential creation, free trial or free allowance, fast time to first request, cli available and mcp integration available. Mistral misses those.

Finally, on operate, machine-readable errors, rate-limit behavior predictable and agent compatibility verified. Mistral misses those.

What neither does

Both fail no mandatory sales call, agent-compatible signup flow, retry behavior documented, idempotency support. If your agent needs any of those, you will be building it yourself either way.

Score, pillar by pillar

The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.

Discover. Exa leads 100 to 87. Exa misses nothing; Mistral misses mcp discoverable.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Exa leads 100 to 31. Exa misses nothing; Mistral misses openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Exa leads 81 to 25. Exa misses no mandatory sales call, agent-compatible signup flow; Mistral misses self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, fast time to first request, cli available, mcp integration available.

Operate. Exa leads 88 to 47. Exa misses retry behavior documented, idempotency support; Mistral misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Exa starts at $0 (free tier with credits) and has a free tier. Mistral does not publish one.

Signal by signal

Which to pick

Exa clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Exa and Mistral. Alternatives to each: Exa, Mistral.

An agent can fetch this as data: POST /v1/compare {"slugs": ["exa", "mistral"]}