Mistral launches Large 4: A trillion parameters trained in Europe
Mistral AI has unveiled Large 4, a multimodal model with one trillion parameters trained entirely in Europe. The open weights will be available for download at the end of October.
What happened?
Mistral AI has unveiled Large 4, a multimodal AI model with a total of one trillion parameters. The model is based on a Mixture-of-Experts architecture that activates 49 billion parameters per request. The open weights will be available for download on 27 October 2026.
Key facts
| Totalt antal parametrar | 1 biljon (1 000 miljarder) |
|---|---|
| Aktiva parametrar per anrop | 49 miljarder |
| Hårdvara vid träning | Cirka 4 000 Nvidia Grace Blackwell-GPU:er |
| Datum för öppna vikter | 27 oktober 2026 |
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Why it matters
Mistral describes the system as the most powerful open model outside of China. By conducting the entire training process in Europe, the company demonstrates that large-scale, cutting-edge training can be carried out locally with high computational efficiency.
Who is affected?
The launch is relevant for AI developers, European technology firms, and research institutions seeking open, high-end models without reliance on American or Chinese cloud infrastructure.
Impact on the EU
Large 4 has been trained exclusively in European data centres, strengthening Europe's technological sovereignty. The model is positioned by European leaders as an independent alternative to American and Chinese AI giants.
What else you should know
The model is known internally as Le Chonk. The training was conducted over two months on 4,000 Nvidia Grace Blackwell GPUs with an energy consumption of approximately 10 megawatts.
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