Mistral Large 4 (Le Chonk) Released with Open Weights

Mistral has released Mistral Large 4 (Le Chonk), a 1-trillion-parameter multimodal model designed for enhanced coding, cybersecurity, and reasoning efficiency. This model is available with open weights, allowing for customizable, self-hosted deployment options. It is built for coders and trusted by defenders, offering three reasoning modes to balance cost and performance. According to Mistral, the model leads open-weight benchmarks in coding and defensive security, and it is trained on European infrastructure to support sovereign AI initiatives. Mistral Large 4 can be run locally with open weights, providing developers and enterprises the power to own, customize, and control their AI solutions. The model’s coding capabilities have been validated in real-world environments, and it is claimed to handle legitimate defensive security tasks effectively, with a high refusal rate for malicious requests. Mistral’s commitment to transparency and openness positions it as a leader in the open frontier of AI development.