Stepfun just announced their new SOTA model
This is a AI post classified by Jev as Frontier models (a model release), kept by the AI Radar because it carries real work, not commentary.
Stepfun just announced their new SOTA model step 5 preview is a 600b model with only 27b active params, and early numbers are looking insane: > 67.7 on deepswe > beats gemini 3.8 flash > 1m context window + image and video input > $1 input and $2.70 output > beats most of chinese models it’s already available in api and chat, so you can play around if you want already got access and running some tests now, will post results soon which model should i test it against?
Posted by J A Z I I (9.7k followers) 1 h ago · 19 likes · 806 views · view the original post on X. Kept by the AI Radar as Frontier models. Tools mentioned: StepFun Open Platform, 阶跃星辰.
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