We’ve been quiet for too long. It’s time for a change.
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.
We’ve been quiet for too long. It’s time for a change. Over the past few months, we’ve been pushing toward the frontier, step by step. And now, things are finally coming together. Welcome to StepFun. Come build better open models and more general agents with us!
Posted by Xiuyu Li (14.2k followers) 1 h ago · 91 likes · 2.6k 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
- Step 5 Preview from @StepFun_ai is 600B params total where only 27B are active, and… — @plotarmordev
- Xiaomi MiMo-V2.6 models are currently training on a mix of 23 different harnesses👇 — @zainhas
- Added Jev as a review gate to http://rakazo.com. — @elie2222
- Introducing Da7em Bench. — @Da7_Tech
- update incoming! — @RileyRalmuto
- 前几天分享的 no-ai-slop 能去掉生成文案的 AI 味,今天又发现一个工具 SlopMonster 可以给文案打分,分不够就不让上线。 — @GitHub_Daily
- The most interesting thing about this release, to me, is the implication that there had… — @teortaxesTex
- Cool, this is working now and the models (Fable and Astra) seem to like it: — @doodlestein
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. 15.2k 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 04:55 UTC. Full method.