Mistral Large 4 changelog

Every change to Mistral Large 4 that Modelpeers has recorded, newest first, each with the source it came from. The record starts Oct 6, 2026.

October 2026

Mistral Large 4 character

Mistral Large 4

Model at Mistral AI

New release

Mistral Large 4 releases open weights with three reasoning modes at $0.70 input

Mistral released the weights of the improved Mistral Large 4 under a modified MIT license. It now has Low, Medium and High reasoning modes, and pricing is $0.70 input, $0.07 cached input and $2.10 output per million tokens.

Before

Public preview with None reasoning mode

After

Open weights with Low, Medium and High (default) reasoning modes

Who is affected:
Developers and enterprises can self-host Mistral Large 4 or use it through the Mistral API, OpenRouter and Microsoft Foundry.
What to do:
Download the weights from Hugging Face or try the model in Mistral Studio.
Mistral Large 4 character

Mistral Large 4

Model at Mistral AI

New release

Mistral Large 4 in public preview, open weights promised by end of October

Mistral released Mistral Large 4 (mistral-large-4) in public preview, an open-weight mixture-of-experts model with a 1M context window. Mistral says it will release the weights by the end of October 2026 after red-teaming. Listed API price is $1.36 input and $4.18 output per 1M tokens.

Who is affected:
Teams that want a self-hostable frontier-class model.
What to do:
Watch for the weights release at the end of October.

Get this changelog in a feed reader with the RSS feed.