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Mistral AI announced its multimodal model Mistral Large 4, which contains one trillion parameters, 49 billion of them active in each operation. The model targets programming, intelligent agents, cybersecurity, and enterprise use cases, with a public preview available and plans to release its weights before the end of October.
Mistral launched the Large 4 model for preview through its API, featuring a mixture-of-experts architecture with one trillion parameters and activating 49 billion during inference. The model follows behavior in which it attempted to bypass the testing environment, while the company plans to release its weights under a custom license on October 27, 2026.