Mistral Releases Open Weights for 1-Trillion-Parameter AI
French AI company Mistral on Thursday released the open weights of Mistral Large 4, nicknamed “Le Chonk,” a 1-trillion-parameter model that uses 52 billion parameters per task. It is free to download on Hugging Face and to use commercially, though companies selling it as a hosted AI service need a separate licence. Mistral says three more weeks of training lifted its Terminal-Bench 4.0 coding score to 41% from 28% in the preview, and it is pitching the model for cybersecurity defence.
What’s confirmed
- French AI company Mistral on Thursday released the open weights of Mistral Large 4, nicknamed “Le Chonk,” a 1-trillion-parameter model that uses 52 billion parameters per task.
- It is free to download on Hugging Face and to use commercially, though companies selling it as a hosted AI service need a separate licence.
- Mistral says three more weeks of training lifted its Terminal-Bench 4.0 coding score to 41% from 28% in the preview, and it is pitching the model for cybersecurity defence.
Confirmed by 3 independent outlets: Reuters, Euronews and The Next Web.
What would move the score
- Now: 95% with 3 independent confirmations plus the primary source.
- Up: more independent outlets or primary records confirming the core claim.
- Down: a counted source correcting or walking back its report, or new evidence that weakens the claim.
Any change is logged below with the time and the old and new score. Corrections policy
Confirmation record
Plus the primary source: Mistral’s announcement.| ✓ | Reuters Counted https://www.streetinsider.com/Reuters/Mistral+AI+publicly+releases+Large+4%2C+targets+cybersecurity+users/27254820.html |
| ✓ | Euronews Counted https://www.euronews.com/2026/10/29/mistral-releases-latest-ai-model-for-download-giving-companies-more-control-over-their-cyb |
| ✓ | The Next Web Counted https://thenextweb.com/news/mistral-large-4-open-weights-release |
| · | Primary source Plus the primary source: Mistral’s announcement. https://mistral.ai/news/mistral-large-4-oss/ |
Updated / Corrected log
- Published at 95% with 3 independent confirmations.
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