AI API latency, week of 28 September 2026: what actually moved
· covers 28 September 2026
Week of 28 September 2026: 2 different providers were fastest across the 4 regions we measure from, and 3 provider-region pairs moved by more than a quarter against the week before.
Who led each region last week?
| Region | Fastest | p50 TTFB | Uptime |
|---|---|---|---|
| Asia (Tokyo) | fireworks | 18 ms | 99.7% |
| Europe (Germany) | fireworks | 98 ms | 100% |
| South America (São Paulo) | openrouter | 60 ms | 100% |
| US (Central) | fireworks | 29 ms | 100% |
What changed by more than 25%?
| Provider | Region | Week before | This week | Change |
|---|---|---|---|---|
| replicate | South America (São Paulo) | 191 ms | 400 ms | +109% |
| hyperbolic | Europe (Germany) | 396 ms | 692 ms | +75% |
| inference-net | US (Central) | 92 ms | 130 ms | +40% |
Same series: ← 21 September 2026
This post is a snapshot. The live figures behind it: /fastest-ai-api · all posts