How many AI models does StepFun serve?
2 tracked models as of 11 October 2026: 2 language models (2 with a public ModelCap Index position), across 2 live endpoints observed through OpenRouter.
Inference provider
StepFun: AI models and API pricing
Every tracked model StepFun serves through OpenRouter, with StepFun's own input and output price per 1M tokens, the context window it serves, disclosed quantization and measured endpoint uptime. Rows link to the model page, where every provider's deployment is listed side by side.
Snapshot as of 11 October 2026
StepFun serves 2 tracked models through 2 endpoints as of 11 October 2026; the highest-ranked is Step 5 Preview (ModelCap Index #39); mean measured uptime is 100.0%.
Models served
2
On the ModelCap Index
2
Cheapest output price
$1.15/1M
Language models on StepFun (2)
Ranked models first, in ModelCap Index order. Prices are the lowest StepFun lists for the model; the endpoint count shows how many deployments carry it.
StepFun on ModelCap: common questions
What is the best model available on StepFun?
Step 5 Preview from StepFun is the highest-ranked language model StepFun serves, at ModelCap Index position #39 and $2.70 per 1M output tokens on StepFun. The table lists every model in Index order.
What is the cheapest model on StepFun?
Step 3.7 Flash at $1.15 per 1M output tokens ($0.20 per 1M input), the lowest positive language-token price StepFun lists. Free-tier endpoints, where present, show as $0 and are excluded from that comparison.
Which StepFun model has the largest context window?
Step 5 Preview, served with a 1M-token context window on StepFun. Providers sometimes serve less than the model's published maximum, so the figure here is the provider's own.
How reliable is StepFun?
Mean measured uptime across StepFun endpoints is 100.0% over the last 30 minutes, as reported by OpenRouter at the time of the snapshot. Per-model uptime is in the table; it is a live operational signal, not a service-level guarantee.
Where do the StepFun prices come from?
From the OpenRouter catalogue entry for each StepFun endpoint, in USD per 1M tokens, re-observed on every ModelCap refresh. Where StepFun exposes several deployments of one model at different prices, the table shows the lowest and notes the count; the model page lists each deployment.
How current is this page?
This page uses the published ModelCap snapshot dated 11 October 2026. Publication and page updates happen separately. Offers retained from a failed refresh are marked stale in the data and are not counted here.