StepFun’s new Step 5 Preview model is impressive!
This is a AI post classified by Jev as AI coding agents (a model release), kept by the AI Radar because it carries real work, not commentary.
StepFun’s new Step 5 Preview model is impressive! Had a chance to test it early. I've been testing it as a coding agent. It’s on the Pareto frontier for cost vs. capability. It is a very capable model, comparable to GLM 5.3, Kimi K3, and others, and it comes at a very competitive price. It’s worth trying in your favorite coding agent. I tested it in a minimal harness to see how it compares with GLM 5.3. Here are my results. Overall, it is very effective and feels like a model I could use for a whole range of coding tasks. One behavior that stood out is that it knows when to stop, which
Posted by elvis (320.6k followers) 2 h ago · 22 likes · 4.4k views · view the original post on X. Kept by the AI Radar as AI coding agents.
More AI work like this
- here's how i shipped 2,500 PRs last month to production — @poteto
- very nice paper by Xiaomi Mimo detailing their data factory to get RL environments from… — @eliebakouch
- GPT-6 Astra turned Pokémon Emerald into a real-time action game — @hakimieiqbal
- Alright, Kimi Code has joined the game w/ their own Desktop version. I've used Cli… — @tphuang
- enemies to lovers.exe — @Ananth7e
- [插播一条广告]Codex Pro 20X依旧有充值方案，需要的可以看下我的代充网站： — @mylifcc
- Coordinates a fleet of coding agents on a shared Kanban board to execute tasks in… — @tom_doerr
- 补一个雨声版本，晚上睡不着不妨进来看看 — @Saccc_c
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. 38.9k posts from 5k X accounts over the last 14 days, 1.6k tools, 19 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-21 15:58 UTC. Full method.