# openrouter vs xai — AI API latency comparison
Updated July 24, 2026. As of July 24, 2026, openrouter has lower edge latency (time-to-first-byte) than xai in 4 of 4 measured region(s). From South America (São Paulo), openrouter responds in 56 ms p50 vs 265 ms.

| Region | openrouter p50 | xai p50 | Faster |
| --- | --- | --- | --- |
| Asia (Tokyo) | 53 ms | 172 ms | openrouter |
| Europe (Germany) | 99 ms | 299 ms | openrouter |
| South America (São Paulo) | 56 ms | 265 ms | openrouter |
| US (Central) | 58 ms | 128 ms | openrouter |


Source: https://llmlatency.dev/compare/openrouter-vs-xai