StepFun @StepFun_ai

Step 5 Preview pushes our intelligence–cost Pareto frontier outward. It comes in at 44 on the Artificial Analysis Intelligence Index, $0.71 per task. Thanks @ArtificialAnlys for putting Step 5 Preview through the full evaluation. More to come on Oct 15. [引用 @ArtificialAnlys]: StepFun's Step 5 Preview scores 44 on the Artificial Analysis Intelligence Index, matching Kimi K3 (max) at ~2.8x lower cost per task, but trails peers on agentic evaluations Step 5 Preview is @StepFun_ai's new flagship model, with 600B total and 27B active parameters, succeeding Step 3.7 Flash (released May 2026). It scores 44 on the Intelligence Index, level with Kimi K3 (max) and just behind…