Key Info

MiniMax has released the open weights of MiniMax M3.1 Flash, a 428B-parameter model with 23B activated per token, and GMI Cloud reports it was live on its platform from day one, now also served through OpenRouter.

Highlights

  • MiniMax M3.1 Flash weights are now public: 428B total parameters, 23B activated per token.
  • Reported agentic benchmark scores include 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.
  • GMI Cloud made the model available from launch day via the GMI API.
  • The model is also accessible on OpenRouter with GMI Cloud as the serving provider.