# StepFun models

[Get API key](https://vercel.com/d?to=%2F%5Bteam%5D%2F~%2Fai-gateway%3FshowCreateKeyModal%26utm_source%3Dgateway-labs-page%26utm_campaign%3Dai-gateway-labs&title=Get%20API%20key) [Read the docs](https://vercel.com/docs/ai-gateway)

Browse and compare every StepFun model available on Vercel AI Gateway. Compare pricing, context windows, and capabilities, then call any of them through a single API.

| Model | Context | Latency | Throughput | Input | Output | Cache | Web Search | Capabilities | Providers | ZDR | No Training | Regional Inference | Free Tier | Released |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |

| [stepfun/step-3.7-flash](/ai-gateway/models/step-3.7-flash) | 256K | 6.6 s | 89 tps | $0.20/M | $1.15/M | Read:$0.04/M Write:— | — | +1 |  |  |  |  |  | 05/28/2026 |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [stepfun/step-3.5-flash](/ai-gateway/models/step-3.5-flash) | 262K | 0.2 s | 146 tps | $0.09/M | $0.30/M | Read:$0.02/M Write:— | — | +1 |  |  |  |  |  | 01/29/2026 |  |