Simon Willison’s Weblog·1 week ago·
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Mistral released a preview of Mistral Large 4 via its API. It is a 1 trillion-parameter model running on 3,800 NVIDIA Grace Blackwell GPUs. Mistral says it will follow with an open-weights version at the end of this month and limits reasoning levels to “none” and “high” in the API.
OpenAI revealed math solutions produced by an unreleased frontier model in a batch of 722 manuscripts covering 372 families of related results. The release includes solutions to hundreds of open questions. Community responses are being shaped by new ethics and academic conduct concerns alongside continued interest in the breakthroughs.
Mistral AI released Mistral Large 4 (ML4), a large multimodal model meant to compete with both closed and open rivals in the US and China. ML4 is nicknamed Le Chonk for having 1 trillion parameters and will make its model weights available in about three weeks after safety testing. Until then, access is limited to a public guardrail endpoint, and the company plans to offer weights intended for defense while restricting malicious use via safeguards and partner access.
Mistral unveiled Mistral Large 4 (le Chonk), its largest multimodal AI model to date, and said it is aiming to match or beat top open models. The model is a one trillion-parameter system, and Mistral says it will be fully available later this month after a preview launch. Availability shifts from preview for developers to full release and wider access via Mistral’s API.
Mistral released a new version of its flagship general-purpose AI model as it tries to close the gap with competing frontier systems. The article specifically mentions a 68% result tied to its evaluation. This moves Mistral’s model offering to a newer release and is meant to help it regain momentum in frontier AI.
Mistral is launching a public preview of Mistral Large 4 (ML4), including a try-it option via the preview API on Mistral Studio. The model is described as a 1 trillion-parameter natively multimodal system with 49 billion active parameters, with weights scheduled for release by the end of this month. The preview expands access to an open-weights, multimodal frontier model while the company red-teams it with partners and authorities and will publish more architecture and benchmark details before the weight drop.
Google will limit free Google Gemini access to Gemini Flash Lite starting October 9, instead of letting free users choose Flash and Pro. The standard Flash model will require a $4.99/month Google AI Plus subscription, and AI Plus will no longer include Gemini Pro. Access to Gemini Pro and the advanced “Deep Think” option will shift to higher-tier Google AI Pro or Ultra plans.
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