# Mistral releases Mistral Large 4 open weights and halves API prices

> Original title: Mistral released the weights of its 1-trillion-parameter Mistral Large 4 and roughly halved its API price.

- Source: Rohan Paul
- Published: 2026-10-29T18:38:50.000Z
- Bad Influence: https://badinfluence.news/items/nbs3ijspr8sq8ymoawzttpkab
- Original: https://x.com/rohanpaul_ai/status/2115876025452331018

## Summary

Mistral has released the weights of Mistral Large 4, a 1-trillion-parameter model, under a modified MIT license that requires Model-as-a-Service providers to obtain a separate commercial license. API pricing is now $0.70 per million input tokens, $0.07 cached input and $2.10 output, about half the prior list prices. The post says Terminal-Bench 4.0 rose from 28% to 41% after three more weeks of RL, but Large 4 roughly ties GLM-5.3 at 48% on Artificial Analysis's Coding Agent Index while using 47% fewer tokens per task.

## Post

Mistral released the weights of its 1-trillion-parameter Mistral Large 4 and roughly halved its API price.

Unlike Large 3’s Apache 2.0 release, the weights carry a modified MIT license that makes Model-as-a-Service providers obtain a separate commercial license.

says 3 more weeks of RL since the preview lifted the model’s Terminal-Bench 4.0 score from 28% to 41%, 1 point above China’s GLM-5.3.

On Artificial Analysis’s Coding Agent Index, Large 4 does not lead: its 48% effectively ties GLM-5.3, and its edge is 47% fewer tokens per task.

API pricing is now $0.70 input, $0.07 cached input and $2.10 output per million tokens, about half the list prices of $1.36, $0.14 and $4.18 that applied by 22 October with no sale running. 

The Mistral Ecosystem Open-Weight license lets anyone use, modify and commercialize the model but requires Model-as-a-Service businesses to get a separate commercial license, a tighter deal than the Apache 2.0 license on Mistral Large 3’s open weights.

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