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Cerebras vs Exa

Exa scores higher on the AgentReady, 92/100 against 46/100. They differ on 19 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Cerebras. Cerebras is a company that builds AI accelerators and inference solutions powered by the Cerebras Wafer Scale Engine, offering the fastest AI inference in the industry.

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

Where Exa is ahead

Exa passes clear canonical domain and llms-full.txt / full agent docs, and Cerebras does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: structured api reference, openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided and errors and status codes documented. Cerebras misses those.

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

Finally, on operate, structured, predictable output, machine-readable errors, rate-limit behavior predictable and agent compatibility verified. Cerebras 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. Cerebras misses clear canonical domain, llms-full.txt / full agent docs; Exa misses nothing.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Exa leads 100 to 23. Cerebras misses structured api reference, openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented; Exa misses nothing.

Adopt. Exa leads 81 to 38. Cerebras 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, copyable quickstart, cli available; Exa misses no mandatory sales call, agent-compatible signup flow.

Operate. Exa leads 88 to 35. Cerebras misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Exa misses retry behavior documented, idempotency support.

Pricing

Cerebras does not publish a machine-readable starting price. Exa starts at $0 (free tier with credits) and has a free tier.

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: Cerebras and Exa. Alternatives to each: Cerebras, Exa.

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