cerebras vs openrouter — AI API latency comparison
As of July 24, 2026, openrouter has lower edge latency (time-to-first-byte) than cerebras in 4 of 4 measured region(s). From Asia (Tokyo), openrouter responds in 53 ms p50 vs 204 ms.
Edge latency by region
| Region | cerebras p50 TTFB | openrouter p50 TTFB | Faster |
|---|---|---|---|
| Asia (Tokyo) | 204 ms | 53 ms | openrouter |
| Europe (Germany) | 199 ms | 99 ms | openrouter |
| South America (São Paulo) | 186 ms | 56 ms | openrouter |
| US (Central) | 66 ms | 58 ms | openrouter |
Full details: cerebras by region · openrouter by region.