# MiniMax publishes M3.1 Flash weights on Hugging Face

> Original title: MiniMax has published MiniMax M3.1 Flash weights on HuggingFace.

- Source: Testing Catalog
- Published: 2026-10-23T09:18:55.000Z
- Bad Influence: https://badinfluence.news/items/qt1pkyesyukf525ncxfxj1iqg
- Original: https://x.com/testingcatalog/status/2113560791941091619

## Summary

MiniMax has released the weights for M3.1 Flash on Hugging Face, with 428B total parameters and 23B activated per token. MiniMax reports scores of 76.2 on BankerToolBench, 73.7% on DeepSWE v1.1, 61.7 on OSWorld V2, 29.6 on Agents' Last Exam, and 82.2 on CyberGym. The model was previously known as the "Space Bunny" stealth model on OpenRouter and was announced October 19.

## Why it matters

The source gives parameter counts, benchmark scores, and download locations, letting readers compare MiniMax M3.1 Flash with other open-weight models for agentic work.

## Post

MiniMax has published MiniMax M3.1 Flash weights on HuggingFace. 

> The model has 428B parameters total, 23B activated per token.

> MiniMax M3.1 Flash, also known as "Space Bunny" stealth model from OpenRouter, was announced on October 19 and is now available on MiniMax platform and APIs.

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHVTgVmbWwAA5CWQ.jpg&mode=thumb&exp=1793404800&sig=1d112c9b816840f7)

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHVTgVmfW8AAR5WD.jpg&mode=thumb&exp=1793404800&sig=92fb64291cf77111)

## Quoted post @MiniMax_AI

> MiniMax M3.1 Flash weights are now public. 428B parameters total, 23B activated per token.
> 
> Agentic performance: A generational leap in agentic tasks, coding, and cybersecurity — 76.2 on BankerToolBench, 73.7% on DeepSWE v1.1, 61.7 on OSWorld V2, 29.6 on Agents' Last Exam, and 82.2 on CyberGym.
> Efficient by design: MiniMax Sparse Attention and DSpark speculative decoding improve inference efficiency.
> 
> Hugging Face:
> https://huggingface.co/MiniMaxAI/MiniMax-M3.1-Flash
> ModelScope:
> https://modelscope.cn/models/MiniMax/MiniMax-M3.1-Flash
> 
> API: http://platform.minimax.io
> M Plan: https://minimax.io/m-planMiniMax
> MCode for desktop: https://agent.minimax.io/download

https://x.com/MiniMax_AI/status/2113436864904610008