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.

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2026-09-22 01:49 · AlphaSignal
StepFun's Step 5 Preview Matches Top Rivals at One-Third the Cost

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