Step 5 Preview Sustains 24-Hour Agent Runs, From GPU Kernels to Post-Training
StepFun_ai · x · 2026-09-20
StepFun says Step 5 Preview sustains long-horizon execution across software environments, web apps, 3D workflows, and programmable hardware, tracking prior results and iterating on execution feedback. Demoed runs last up to 24 hours, including GPU kernel optimization and automated post-training.
Related event: StepFun Launches Step 5 Preview: 600B MoE Flagship, Open-Weights on Oct 15(17 posts)→
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