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Galileo vs Last9

Galileo scores higher on the AgentReady, 57/100 against 48/100. They differ on 6 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Galileo. Galileo is the AI observability and eval engineering platform where offline evals become production guardrails.

Last9. Last9 is an observability platform for logs, metrics, and traces.

Where Galileo is ahead

Galileo passes search discoverable, and Last9 does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: authentication documented and limits / constraints documented. Last9 misses those.

And on adopt, cli available. Last9 misses it.

Finally, on operate, structured, predictable output. Last9 misses it.

Where Last9 is ahead

Last9 passes clear product positioning, and Galileo does not. That is discover, whether an agent can find the product at all without being told it exists.

What neither does

Both fail structured api reference, openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution. 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. Both sit at 87/100 here. Galileo misses clear product positioning; Last9 misses search discoverable.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Galileo leads 31 to 15. Galileo misses structured api reference, openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented; Last9 misses structured api reference, openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Galileo leads 55 to 50. Galileo misses self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request; Last9 misses self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, cli available.

Operate. Galileo leads 53 to 41. Galileo misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution; Last9 misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution.

Pricing

Galileo does not publish a machine-readable starting price. Last9 does not publish one.

Signal by signal

Which to pick

Galileo clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Galileo and Last9. Alternatives to each: Galileo, Last9.

An agent can fetch this as data: POST /v1/compare {"slugs": ["galileo", "last9"]}