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As of Oct 6, 2026, Mistral Large 4 (Le Chonk) is a 1T-parameter natively multimodal model with 49B active parameters, in public preview with weights due end of month.
- Oct 6Official
Mistral launches Large 4 preview: 1T-parameter multimodal model, weights due end of month
Mistral launched a public preview of Mistral Large 4 (ML4), unofficially nicknamed Le Chonk: a 1 trillion-parameter, natively multimodal model with 49 billion active parameters. The preview API is live on Mistral Studio, with weights dropping at the end of this month. Mistral says ML4 is competitive with the strongest open-source models globally, significantly outperforms any open-weight model developed in the US or Europe, and is state-of-the-art among open models on enterprise workloads including cybersecurity, finance and law. In some domains such as visual grounding, the company says it surpasses even frontier closed models.
Source: Mistral AI
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