Mistral shows 133 agents finding and fixing a real security bug

Mistral posted a demo of its open model Large 4 running 133 agents on Django, a popular web framework. The agents mapped the code, hunted for flaws, tested attack scenarios and confirmed a recent known vulnerability, then the model wrote the patch. The video is sped up 90 times. Separately, Large 4 joined Open Math OS, a shared research workspace for mathematicians and AI agents built only on open models.

Why it mattersIt is a concrete picture of agent teams doing security triage on code you can self-host, but it is Mistral's own demo on a bug that was already public. Treat it as a sign of what's possible, not proof it will find new flaws in your app.

Curated by Sara Simeone as part of our human editorial coverage. The original sources are linked below; curation is distinct from a Hype or Fact? assessment.

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How we knowCompany figures are labelled as their own claims; anything we couldn't verify is labelled as a report or a claim.