Mistral AI Prepares 1T Model 'Le Chonk' for Late October Release
Mistral AI is preparing for the release of its largest open-weight model to date, Mistral-Large-4 'Le Chonk', in late October 2026. The model features a total of 1.05 trillion parameters.
What happened?
On October 10, 2026, Mistral AI published a preliminary product page on Hugging Face for its upcoming model, Mistral-Large-4, internally codenamed 'Le Chonk'. The model is a Mixture-of-Experts (MoE) architecture with a total of 1.05 trillion (1T) parameters, of which 49 billion are active per token. It supports a context window of up to one million tokens and is scheduled for launch in late October 2026.
Key facts
| Totalt antal parametrar | 1,05 biljoner (1.05T) |
|---|---|
| Aktiva parametrar per token | 49 miljarder |
| Kontextfönster | 1 000 000 tokens |
| Lanseringsdatum | Slutet av oktober 2026 |
”the strongest open-weight model developed outside China by a wide margin”
”still lags behind the frontier in areas such as coding”
Why it matters
Mistral describes the model as the most powerful open-weight language model developed outside of China by a significant margin, though the company acknowledges it still trails the absolute frontier in areas such as programming. The launch challenges both Chinese and US competitors in the market for open models.
Who is affected?
The model targets AI researchers, developers, and enterprises that require a large-scale language model with open weights. However, it requires significant computational resources to run locally due to its size exceeding one trillion parameters.
Impact on the EU
Mistral AI is based in France and designs its models in alignment with the EU AI Act and European data protection regulations. The release of open weights allows European organizations to run the model locally in their own data centres without transferring data to third countries.
What else you should know
The model card on Hugging Face indicates that Mistral-Large-4 also features an integrated vision encoder with 1.6 billion parameters. Developers can track the release directly via the model page on Hugging Face.
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Vilka är de tekniska specifikationerna för Le Chonk?
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