deepseek vs xai — AI API latency comparison
As of July 24, 2026, xai has lower edge latency (time-to-first-byte) than deepseek in 3 of 4 measured region(s). From US (Central), xai responds in 129 ms p50 vs 309 ms.
Edge latency by region
| Region | deepseek p50 TTFB | xai p50 TTFB | Faster |
|---|---|---|---|
| Asia (Tokyo) | 172 ms | 172 ms | deepseek |
| Europe (Germany) | 299 ms | 298 ms | xai |
| South America (São Paulo) | 426 ms | 270 ms | xai |
| US (Central) | 309 ms | 129 ms | xai |
Full details: deepseek by region · xai by region.