Unverified50% confidenceFactExact time
Step 5 Preview's 600B total parameters correspond to about 27B activated parameters, an activation ratio of less than 5%, which is a highly sparse configuration.
1
Sources
50%
Confidence
Long-term
Relevance
10/17/2026
First Seen
Sources
Step 5 Preview: A 600B Open-Source MoE Model Built for Long-Running Agents
producthuntProductHunt Daily10/17/2026
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Related Claims
UnverifiedStep-5-Preview adopts an MoE architecture with 600B total parameters and 27B activated parameters.78% similarUnverifiedStep 5 Preview is StepFun's newly released next-generation flagship foundation model, using a sparse MoE architecture with a total parameter count of 600 billion, activating approximately 27 billion parameters per token.72% similarUnverified实测参数建议：测试阶段用480P分辨率+8步速度最快但有明显瑕疵；生产阶段建议768标准或480P、步数不低于24、性价比约30步、正式产出建议50步70% similarUnverifiedLeNet-5约有7层，参数量小67% similarUnverifiedThe ratio of activated parameters to total parameters for MiniMax M3, 23B/428B, is approximately 5.4%.67% similar
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