Step 5 Preview from @StepFun_ai is 600B params total where only 27B are active, and…
This is a dev post classified by Jev as AI dev tools (a launch), kept by the Dev Radar because it carries real work, not commentary.
Step 5 Preview from @StepFun_ai is 600B params total where only 27B are active, and their chart puts it at the level of GLM 5.3 and Kimi K3 at about 65% less cost per task. For us with a DGX Spark or more, it likely doesn't fit one 128GB pool even quantized, so it's a 2x> Spark build. Will update you on October 15th when it releases
Posted by netrunner (6.9k followers) 51 min ago · 11 likes · 553 views · view the original post on X. Kept by the Dev Radar as AI dev tools. Tools mentioned: StepFun Open Platform.
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