The new Step5 model has a total of 600B parameters, with 27B active. Looking at this…
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.
Welcome back, StepFun! The new Step5 model has a total of 600B parameters, with 27B active. Looking at this data, it seems to surpass the Kimi K3. I'll try it right away! Open weights are on October 15th, and my new GPU should arrive around that time. I can't wait to infer with my PRO 6000 TP=4!
Posted by Hikari∣LocalLLM⚡ (8.1k followers) 1 h ago · 23 likes · 854 views · view the original post on X. Kept by the Dev Radar as AI dev tools. Tools mentioned: StepFun Open Platform.
More dev work like this
- Stepfun just announced their new SOTA model — @notjazii
- Coding agents get expensive when every task gets premium-model treatment. — @DanKornas
- iMessage was never meant to win. — @xadisingh
- Someone squeezed pretraining, SFT, reward modeling, DPO, PPO and GRPO into a… — @agenticgirl
- The lines between text and image gen models are blurred a bit. — @loktar00
- lmaooo https://classifier.dev already has copycats — @michael_chomsky
- Your AI agent knows your product. This repo gives it an SEO workflow. — @DanKornas
- Building a Recurrent Neural Network. #BigData #Analytics #DataScience #AI… — @gp_pulipaka
Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 15.3k posts from 4.8k X accounts over the last 21 days, 1.7k tools, 12 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-20 07:24 UTC. Full method.