Mistral Large 4 is now available in Arena.ai's Agent Arena and Code Arena

Arena.ai announced that Mistral Large 4 is available for testing in Agent Arena and Code Arena. In Agent Arena, community votes will determine the model's evaluation across long-horizon workflows requiring web search, filesystem, and terminal tools. The platform measures model performance against the average model using causal tracing, with official scores scheduled for release soon.

Mistral Large 4 is also accessible in Code Arena across the WebDev, Text, and Vision categories.

According to Mistral AI, Mistral Large 4 has 1 trillion total parameters with 49 billion active parameters and is natively multimodal. The model is currently available via API on Mistral Cloud, with an open weights release planned for late October.