Mistral’s 1-Trillion-Parameter Le Chonk Checkpoint Lands on Hugging Face

From the source

Mistral AI on October 29, 2026 released the weights of Mistral Large 4, its flagship 1-trillion-parameter natively multimodal model known as Le Chonk , making the checkpoint downloadable from Hugging Face for self-hosting and available across its API and partner platforms under a modified MIT open-weight license.

The release follows the model’s public preview on October 6, 2026, when Mistral first introduced the 1.05-trillion-parameter mixture-of-experts system. In its announcement , Mistral said it had applied feedback from the preview while continuing to scale reinforcement learning, producing what it described as major gains in coding, defensive cybersecurity, and reasoning efficiency.

The company characterized Mistral Large 4 as the best open-weight model for coding and said the gains were continuing to accelerate with no signs of saturation.

License, Pricing, and Availability

The weights are published on Hugging Face under the Mistral Ecosystem Open-Weight License, a modified version of the MIT license.

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