Momentic Mo QA Agent Is Live: Free to Start, 3x More Bugs Found
In short
- Momentic made Mo, its AI QA agent, generally available. It tests your app like a human tester and runs on every pull request.
- In Momentic’s own benchmark, Mo found about 269 labeled bugs. The next best agent found about 86.
- It is free to start with no credit card. A freelance tester at 8 hours per release costs around €800 a month, so the test is cheap.
Testing is the boring part of shipping software, and it is where small teams burn money. Momentic says its agent now does that job. The numbers are impressive, but they come from Momentic, so read on.
What happened
Momentic moved Mo out of beta. Mo is an agent that opens your app, clicks through it and reports bugs, without test scripts. You can start it from your coding agent, from the app, from a comment on a pull request, or with a qa command in the terminal.
On a pull request, Mo runs against the preview deployment and sets a commit check. A session takes about 15 minutes for a pull request and about 2 hours for a whole app.
The benchmark: Momentic graded Mo, Codex, Claude Code and Devin on 20 areas of four open-source apps (Gitea, Metabase, Twenty and Saleor), 60 minutes per area. Mo found about 269 labeled bugs. The next best agent found about 86.
Pricing for paid plans is not published. Momentic says it is free to start with no credit card, and enterprise terms go through sales.
How to use it
If you run a web shop or a SaaS with preview deployments on Vercel or Cloudflare, the first step is simple. Connect Mo to one repository, comment on your next pull request, and read what it finds.
Use it before a release, not instead of your own judgment. Check every reported bug by hand for the first two weeks. Count how many are real. That ratio tells you if it is worth paying for.
Do the math: a freelance tester at €25 per hour who spends 8 hours on each release costs €200. Four releases a month is €800, or €9,600 a year. I do not know Mo’s paid price, so use this as the bar it has to beat. Free to start means you can measure it against that number at zero risk.
What it means
AI writes code fast now, so testing becomes the bottleneck. Whoever automates it ships faster. That is the pressure on every dev team.
Be careful with the claim. A vendor benchmark on four open-source apps does not tell you how Mo behaves on your product. The page also does not say how many reported bugs were false alarms. Treat 269 versus 86 as a reason to try it, not as proof.
Ivan’s Take
Worth a trial, because the trial costs nothing. I would not trust the benchmark, I would trust my own repo. If Mo finds three real bugs in your next pull request, it has already paid for itself.
Source: Momentic
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