Mistral open-weights Le Chonk: 1T-param MoE with 52B active, 1M context, best non-China open model

mark_k · x · 2026-10-30

Mistral has released open weights for Le Chonk (Mistral Large 4): a 1T-parameter MoE with 52B active parameters, a 1M-token context window, image input and three reasoning modes. It scores 26 on Artificial Analysis, making it the strongest open model built outside China — though still 6 points behind DeepSeek V4.1 Flash and GLM-5.3. Cost per task dropped 63% versus the preview, with API pricing at $0.70/M input and $2.10/M output tokens.

Related event: Mistral Open-Sources Trillion-Parameter Flagship Large 4, Claims Top Non-Chinese Open Model(56 posts)→

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