Mistral Large 4 costs $1.36 in and $4.18 out, at half price for two weeks after launch
Mistral released Mistral Large 4 (mistral-large-4) in Public Preview on 6 October 2026[1]. It is a general-purpose multimodal model with a Mixture-of-Experts architecture and a 1 million token context window[1].
The standard price per million tokens is $1.36 input, $0.14 cached input and $4.18 output[2]. For two weeks after launch it is half price: $0.68, $0.07 and $2.09[1,2].
Large 3 costs $0.5 input and $1.5 output, so the standard price of Large 4 is about 2.7 and 2.8 times that[2]. Even at the launch discount, Large 4 costs about 1.4 times Large 3[2].
Medium 3.5 costs $1.5 input and $7.5 output, so even at its standard price Large 4 is about 10 percent cheaper on input and more than 40 percent cheaper on output[2].
It was announced as an open-weight model, and the weights are coming soon[1].