StepFun's Step 5 model, released in September, entered deployment in October - launching on Tencent WorkBuddy on...

On October 15, StepFun (阶跃星辰) officially open-sourced the complete weights of its new flagship base model Step 5 ...

On September 20, StepFun released Step 5 Preview, a flagship model aimed at real-world agentic tasks. It uses a spars...

On September 20, StepFun released Step 5 Preview, a flagship model aimed at real-world agentic tasks. It uses a spars...

Tencent released preview weights for its Hy4 large language model on August 28—a 770 billion parameter mixture-of-ex...