Stepfun

Scale-up intelligence possibilities for everyone

271 followers

Scale-up intelligence possibilities for everyone

271 followers

Foundation Models

StepFun is a frontier AI platform building powerful, actionable intelligence with the Step series of models.

Stepfun launches

Launch date

Step 3.7 FlashFlash-speed agents model that can see and act

Launched on May 30th, 2026

Step 3.5 FlashFrontier open-source MoE model built for OpenClaw agents

Launched on March 5th, 2026