Day 7 · 2026-10-31
18 launches checked71 claims quoted word for word121 user reports linked10 verified fixes linked26 corrections publishedLive 8 days5 of 5 founding sponsor spots left
AI launches, checked against real usersLast re-stamped 31 Oct 2026

All receipts / No. 017

No. 017 · ModelStamped 31 Oct 2026

Day 7 receipt

Mistral Large 4

Mistral AI · launched 29 Oct 2026 · We're releasing the weights of Mistral Large 4
Day 2 of 7

Mistral's 1-trillion-parameter multimodal model (52B active), previewed on 6 Oct, with weights released on 29 Oct.

Launch dayWhat they claimed, quoted word for word · 3

“ML4 is one of the world's strongest AI models for cybersecurity.”
? UnclearSourceEvidence: R1, R2

The page ties this to a top-five rank on the Artificial Analysis Cyber Index. No user has yet reported running security work on it.

“We will release the weights by the end of the month.”
✓ HoldsSourceNo linked reports

Weights were published on Hugging Face on 29 October, under a modified MIT licence that requires a commercial licence for model-as-a-service businesses.

“significantly outperforming any open-weight model developed in the US or Europe”
? UnclearSourceEvidence: R3

Mistral's own comparison. One user with a personal benchmark says it is fine but not up to the best Chinese or US open-weight models; no controlled test yet.

Day 7What real users report · 3

R1Forum30 Oct 2026problem

Serving the model through vLLM behind a gateway, the reporter says Claude Code fails on every skill load because the chat template rejects a tool message that follows a user message. They say two other open models returned no such errors. A Mistral reply calls this expected given different training and API.

Open as of 31 Oct · 1 reply · Open the source

R2Hacker News30 Oct 2026problem

A user who tried it on a code documentation task says it ignored their skill files and made some hallucinations, and wonders whether the cause was their harness or the model.

Single comment in the weights thread · Open the source

R3Hacker News30 Oct 2026problem

A user who added it to a personal benchmark says it is fine, but certainly not up to the best Chinese or US open-weight models. They tested the model before the weights release.

Single comment in the weights thread · Open the source


Claims ✓1 ~0 ✗0 ?23 reports
First stamped 31 Oct 2026Last re-stamped 31 Oct 2026