# SGLang adds Day-0 support for Mistral Large 4 on NVIDIA Vera Rubin

> Original title: SGLang has Day-0 support for Mistral Large 4 (Le Chonk), and is the first to serve it on NVIDIA Vera Rubin!

- Source: SGLang
- Published: 2026-10-29T14:24:40.000Z
- Bad Influence: https://badinfluence.news/items/skhdwk9btu9kw26l5w5fskakm
- Original: https://x.com/sgl_project/status/2115812062328930535

## Summary

SGLang says it has Day-0 support for Mistral Large 4, also called Le Chonk, and is the first to serve it on NVIDIA Vera Rubin. The post says Vera Rubin, NVFP4, and DSpark speculative decoding are all supported on Day 0. Mistral describes the model as a natively multimodal 1T MoE with a 1M context window, and says it has open-weight state of the art for security work.

## Why it matters

The post names the Vera Rubin, NVFP4, and DSpark speculative decoding support on Day 0, which matters for teams planning to deploy the model.

## Post

SGLang has Day-0 support for Mistral Large 4 (Le Chonk), and is the first to serve it on NVIDIA Vera Rubin!

Le Chonk is Mistral's largest model to date: a natively multimodal 1T MoE that unifies instruct, reasoning, coding, and agentic workflows. SOTA among open weights for security work, with strong document understanding and a 1M context window.

Vera Rubin, NVFP4, and DSpark speculative decoding all supported on Day 0.

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHVzfPcoa8AA93bp.jpg&mode=thumb&exp=1793491200&sig=36719c88960a9164)

## Quoted post @MistralAI

> Today, we release the weights of a new and improved Le Chonk, advancing the open frontier for agentic coding and cybersecurity.
> 
> 💻 Built to build: Le Chonk ranks #1 on @cognition’s FrontierCode among open models, and sets a new benchmark for Pareto efficiency on @artificialanalysis.
> 
> 🛡 Built to defend: State-of-the-art in cyberdefense, put through the paces by the world's leading cyber vendors, including @CrowdStrike, @cloudflare, @rubrik, @zscaler, and others.
> 
> Built for sovereignty: Make it yours. Download the weights on @huggingface , customize it with Mistral Forge, and deploy it wherever you need it.
> 
> Read more from our team and customers 👇:

https://x.com/MistralAI/status/2115811242556137820