Step 5 Preview from @StepFun_ai hit #1 on OpenRouter Trending, a day after launch. It's available in Kilo Code, Cline, Hermes Agent, and OpenCode. Keep your workflow and just switch models. I've tested the model. It’s a great model and has some nice properties. I've been using it as a coding agent since early access. It checks its own work and stops when the task is done. I would use it for long agent runs that I don't watch closely. StepFun built it for real engineering work. That covers…