StepFun's Step 5 Preview Matches Top Rivals at One-Third the Cost

StepFun's new 600B MoE flagship matches Kimi K3 on the Intelligence Index at roughly one third the cost, with open weights due in October.

Source

Artificial Analysis

Published

Sep 22, 2026, 1:49 AM

Author

AlphaSignal Newsroom

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1 min read

StepFun's new 600B MoE flagship matches Kimi K3 on the Intelligence Index at roughly one third the cost, with open weights due in October.

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