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AI testing tools, compared honestly, and won openly.

agent-qa is the source-available AI testing agent: plain-English tests in your repo, bring-your-own-LLM, runs that build memory. Here is how it stacks up against 25 platforms, services, suites, and frameworks, sources included.

Choosing an AI testing tool

What is the best AI testing tool?

It depends on who should own the tests. If engineering should own them, agent-qa is built for that model: it has no paid tier, its source is available under FSL-1.1-ALv2, tests are plain-English YAML files in your repo, runs execute locally, in CI, or from coding agents via MCP and Skills, and file-backed memory carries learning between runs. Hosted platforms and managed services trade that ownership for convenience, and bill for it annually.

How is agent-qa different from AI testing platforms?

Three structural differences: ownership (tests, memory, and evidence are repo files, not platform records), model choice (bring your own LLM instead of vendor-controlled AI), and agent-nativeness (coding agents run the full QA loop through MCP tools and packaged Skills). Platforms keep those levers on their side of the subscription.

Does agent-qa have a paid tier?

No, agent-qa has no paid tier, seats, or platform fee, and charges no license fee for use permitted by FSL-1.1-ALv2. You still cover LLM tokens from the provider you configure plus infrastructure you choose, and agent-qa's smart caching reuses action plans to keep repeat runs inexpensive.

Can agent-qa replace both my web and mobile testing tools?

Yes. agent-qa runs end-to-end tests on web, Android, and iOS from one plain-English YAML contract, one CLI, and one memory store, a single harness where most stacks accumulate two or three.