# Mistral releases improved Large 4 model weights for self-hosting

_Published Thursday, October 29, 2026 at 10:04 AM EDT · AI · Latest · Tier 2 — Notable_

![Mistral releases improved Large 4 model weights for self-hosting — Primary](https://mistral.ai/cms-media/api/media/file/cover-mistral-sovereign%20copie.webp)

Mistral AI released the weights of its improved Mistral Large 4, a 1-trillion-parameter model that accepts multimodal input, following a public preview earlier this month. Organizations can download, customize and run it on their own infrastructure.

Mistral says three additional weeks of reinforcement learning raised its Terminal-Bench 4.0 score by 13 percentage points to 41%, while reducing output tokens by 30%. The model now offers three reasoning modes to balance performance and cost.

The license permits free use, modification, fine-tuning and commercialization, but businesses offering models as a service must obtain a separate commercial license from Mistral before commercial use.

## Sources

- [Mistral AI Blog](https://mistral.ai/news/mistral-large-4-oss/)

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Canonical: https://techandbusiness.org/newswire/6GMU0sC0752ywwAtJqZ8Fm
Published: 2026-10-29T14:04:29.839Z
Story chronology: 2026-10-29T12:00:07.000Z
Retrieved: 2026-10-29T16:38:42.503Z
Publisher: Tech & Business (techandbusiness.org)