Mistral shows Mistral Large 4 finding, reproducing and patching a Django CVE

Mistral posted a video on X of Mistral Large 4 ("Le Chonk") working on a recent Django CVE. In its description, 133 agents map the code, hunt for flaws, test attack scenarios and confirm the bug, and the model then writes a patch: triage, reproduction, fix. The video is sped up 90x.

It is Mistral's own demonstration; no measurements or comparison with other models were given in the post. Accounts relaying it name the CVE as CVE-2026-1312, which Mistral's post does not state.

By November 4 the post had about 359 likes and 64 replies.