Mistral Claims Mistral Large 4 Beats Claude Opus 5.5 and GPT-6 Astra at Cybersecurity
Summary
Mistral releases a public preview of Mistral Large 4, a 1 trillion-parameter multimodal model with 49 billion active parameters, on Mistral Studio. The company says the model scores 82% on an Artificial Analysis Cyber Index test, beating Claude Opus 5.5 and GPT-6 Astra, which refuse the task. Weights arrive by end of October 2026.
Key Points
- Mistral launches a public preview of Mistral Large 4, a 1 trillion-parameter multimodal model with 49 billion active parameters, available on Mistral Studio.
- Mistral trained the model from scratch on 3,800 NVIDIA Grace Blackwell GPUs in its own European datacenters and plans to release the weights by the end of October 2026.
- Mistral claims the model scores 82% on one Artificial Analysis Cyber Index test, beating closed models like Claude Opus 5.5 and GPT-6 Astra, which refuse the task.