StepFun released one of the best OS models (Step5-Preview) and now did the same for a…
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.
StepFun released one of the best OS models (Step5-Preview) and now did the same for a harness to maximize AI coding. 🎯 Why? StepFun says Step Code is tuned alongside its models to use fewer tokens for the same task, thus an advantage over other open harnesses. Step Code is maximizing Step5-Preview adds the muscle around the brains 🧠 parallel subagents with isolated context 🔌 MCP + Agent Skills 🧩 most Claude Code plugins 🎯 autonomous /goal jobs ⏰ scheduled /cron jobs 🧪 edit → run → test → retry 🔓 MIT licensed StepFun reports 80.9% on Terminal-Bench 2.1 72/89 tasks while using fewer tokens th
Posted by David Hendrickson (11.2k followers) 45 min ago · 1 likes · 151 views · view the original post on X. Kept by the Dev Radar as AI dev tools.
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