StepFun launches Step 5 Preview on OpenRouter: 600B MoE, 1M context, $1/$2.70 pricing
StepFun_ai · x · 2026-10-08
StepFun's flagship Step 5 Preview is now live on OpenRouter, with a week of free access rolling out across coding tools like opencode, Cline and KiloCode.
Key specs:
- Sparse MoE: 600B total / 27B active parameters
- 1M token context window
- Priced at $1 / $2.70 per 1M tokens (in/out), claiming substantially lower task cost
- Built for agentic and professional knowledge work, strong in software engineering and finance, designed for multi-step tasks over large codebases and documents
Related event: Stepfun's Step 5 Preview Launches on OpenRouter with Free Trial(2 posts)→
More from Models
- Ecosia dumps Mistral for Chinese open-source models, CEO says quality is a year behind — IgorCarron · 2026-10-08
- Hugging Face launches OpenEnv Arena: agents compete to build the best RL environments — ben_burtenshaw · 2026-10-08
- Gemini offers grim but timely thoughts on frontier model pacing — aiamblichus · 2026-10-08
- ThyVoice benchmarks 8 speech systems, claims fewest 'who said what' errors at 10x lower cost — thetripathi58 · 2026-10-08
- Chart shows how rapidly AI is taking over math problem solving — willknight · 2026-10-08
- Musk amplifies user test: Grok beats GPT-6 Pro on research, spotting Zhipu's 80% China revenue — elonmusk · 2026-10-08