Mistral launches a preview of Mistral Large 4, or Le Chonk, a 1T model it claims tops any open model developed in the US or Europe; weights are due October 27 (Carl Franzen/VentureBeat)

Mistral AI has launched a public preview of its new flagship model, Mistral Large 4, also known as "Le Chonk". The model has one trillion parameters and is multimodal, capable of processing both text and images. According to Mistral, it ranks among the best open-weight models in the world and outperforms European and US models.

The model boasts advanced cybersecurity and agentic capabilities, as well as improved handling of manufacturing- and finance-related tasks. It was designed to excel at defensive cybersecurity tasks, including log inspection and code auditing.

Mistral Large 4 was trained using roughly 3,800 Grace Blackwell GPUs in Mistral's own datacenters located in Europe, on a corpus spanning more than 160 languages. The model's weights are due to be released on October 27.

Brief written by urgent.news from Techmeme, CNET, The Register Science — 3 reports on this story. Machine-written — may contain errors; check the original before relying on it.