# stepfun — AI API latency & reliability by region
Updated July 23, 2026. Edge latency and uptime of the stepfun API measured from each region.

| Region | p50 TTFB | p95 | Uptime |
| --- | --- | --- | --- |
| Asia (Tokyo) | 312 ms | 790 ms | 100% |
| Europe (Germany) | 454 ms | 1593 ms | 100% |
| South America (São Paulo) | 669 ms | 1566 ms | 100% |
| US (Central) | 433 ms | 1541 ms | 100% |


Source: https://llmlatency.dev/provider/stepfun