# Mistral AI releases Mistral Large 4 as open weights with a technical report

> Original title: The story of how Le Chonk was built, told by the team behind it.

- Source: Mistral AI
- Published: 2026-11-03T10:02:30.000Z
- Bad Influence: https://badinfluence.news/items/s06nr7hfcax7u38qbclilndwf
- Original: https://x.com/MistralAI/status/2117558028111421576

## Summary

Mistral AI says its Mistral Large 4 model is now open-weight and more efficient and compact than its Preview version released three weeks earlier. The company published a technical report on Hugging Face and arXiv describing how the model was built.

## Why it matters

The report traces how Mistral Large 4 was built, a useful account for readers weighing its open-weight release against its Preview version.

## Post

The story of how Le Chonk was built, told by the team behind it.

Now on @arxiv: https://www.alphaxiv.org/abs/2611.mistral-large-4

## Quoted post @PierreStock

> ML4 is now open-weight! Frontier capabilities on code agents & cyber, way more efficient and compact than its Preview version three weeks ago (!) and cherry on the cake: technical report telling its epic backstory. Check it out: https://huggingface.co/mistralai/Mistral-Large-4-1T-A52B/blob/main/assets/technical_report.pdf

https://x.com/PierreStock/status/2117293394238013698