←Back to NewsAI News/LlmsnewsLlmsBenchmarksStepFun's Step 5 Preview Matches Top Rivals at One-Third the CostStepFun's new 600B MoE flagship matches Kimi K3 on the Intelligence Index at roughly one third the cost, with open weights due in October.SourceArtificial AnalysisPublishedSep 22, 2026, 1:49 AMAuthorAlphaSignal NewsroomRead1 min readStepFun's new 600B MoE flagship matches Kimi K3 on the Intelligence Index at roughly one third the cost, with open weights due in October.Reporting is indexed from AlphaSignal. Rights remain with the original publisher and cited sources.Read original report ↗Next readsArtificial Analysis · newsxAI's Grok 4.7 Beats Claude at Enterprise Analysis but Doubles Your BillARC Prize · newsDots Studio's Dots3-Note Preview Tops Open-Weight AI With 76.8% on ARC-AGI-2Liquid AI · newsLiquid AI's LFM2.5 Tops Mobile AI Charts Using Half the Memory
