Step 5 Preview
Step 5 Preview is Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters).. It is ranked #1424 on the Dev Radar, in AI dev tools, first seen 22 days ago and shared in 12 posts (66.2k views).
Step 5 Preview - API Pricing & Benchmarks | OpenRouter Benchmarks Chat Chat Pricing Docs Sign Up Sign Up Sign Up Sign Up StepFun: Step 5 Preview stepfun / step-5-preview Model weights Compare API Try this model Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional knowledge work, with particular strength in finance. It is designed for extended tasks that span large codebases and documents, using tools and refining results over multiple steps. Modalities In / Out Price $1 / $2.70 per 1M…
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Step 5 Preview in numbers
- Rank on the Dev Radar: #1424 of 8798
- Shared in 12 posts by 11 accounts: @HermesWatcher
- 66.2k views on those posts
- First seen 22 days ago, last shared 21 days ago
- Pricing seen by AGK Intelligence: free
- Market: AI dev tools
FAQ
What is Step 5 Preview?
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It was first shared on X 22 days ago and is ranked #1424 on the Dev Radar.
Is Step 5 Preview free?
Yes, it is free to use.
Who shared Step 5 Preview?
11 accounts on X, including @HermesWatcher, in 12 posts totalling 66.2k views.
Every post is read and classified by AGK Intelligence: what it is, which market it belongs to, and whether the link is a real tool. 31.2k posts from 5k X accounts over the last 21 days, 8.8k tools, 12 markets. New posts are collected several times an hour and the full ranking is recomputed every hour — last update 2026-10-30 20:27 UTC. Full method.