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StepFun
stepfun/step-5-preview-20261008Hugging Face ↗
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...
OpenRouter share of tokens, by day.
StepFun: Step 5 Preview holds 14.17% today, up from 2.59% at the start of the visible window.
StepFun: Step 5 Preview's share plotted against days since first tracked, overlaid on other current leaders on the same axis. The question every new-model page asks: is this one going to make it?
Citable stat
As of 2026-10-14, StepFun: Step 5 Preview holds 14.2% of OpenRouter token share, up 11.59pp over 30 days. Source: OpenRouter (openrouter.ai/rankings), as of 2026-10-14. tidelines.ai
Where to run it
Per-provider pricing, context, and uptime via OpenRouter. Sorted by output price.
StepFun: Step 5 Preview is served by 4 tracked endpoints on OpenRouter. The cheapest output price is $2.70 per million tokens from InferenceNet, and the most expensive is $2.70 from StepFun. The largest context window offered is 1049k tokens. Prices are list rates and refresh daily.
| Provider | Input $/M | Output $/M | Context | Uptime |
|---|---|---|---|---|
| InferenceNet | $1.00 | $2.70 | 1049k | 100.00% |
| Featherless | $1.00 | $2.70 | 262k | — |
| DeepInfra | $1.00 | $2.70 | 1049k | — |
| StepFun | $1.00 | $2.70 | 1000k | — |
