LLM API Providers · reliability comparison
DeepSeek API vs xAI API: which is more reliable? (2026)
xAI API is more reliable than DeepSeek API, scoring 82.0 vs 76.0 out of 100. Over the last 90 days DeepSeek API reported 26 incidents and xAI API reported 5, with effective uptime of 100% and 99.76% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | DeepSeek API | xAI API |
|---|---|---|
| Reliability score | 76.0 | 82.0 |
| Rank (LLM API providers) | #6 | #5 |
| Uptime (90 days) | 100% | 99.76% |
| Incidents (90 days) | 26 | 5 |
| Partial / major outages | 3 | 5 |
| Avg time to resolve | — | 1h 10m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where DeepSeek API and xAI API differ
- DeepSeek API reported 5.2× as many incidents as xAI API over the last 90 days (26 vs 5).
- xAI API had 5 partial or major outages, compared with 3 for DeepSeek API.
90-day uptime
DeepSeek API
xAI API
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent DeepSeek API incidents
- Degraded performanceOct 27, 2026 · resolved (duration not published)
- Major outageOct 15, 2026 · resolved (duration not published)
DeepSeek 网页/API 部分中断（DeepSeek Web/API Partially Unavailable）
- Degraded performanceOct 12, 2026 · resolved (duration not published)
- Degraded performanceOct 8, 2026 · resolved (duration not published)
- Degraded performanceOct 1, 2026 · resolved (duration not published)
- Degraded performanceSep 23, 2026 · resolved (duration not published)
Recent xAI API incidents
- Partial outageOct 24, 2026 · resolved in <1m
- Major outageSep 22, 2026 · resolved in 26m
[Global (api.x.ai)] Outages across API, Grok.com, and Grok Build
- Partial outageSep 10, 2026 · resolved in 12m
- Major outageSep 3, 2026 · resolved in 3h 39m
- Partial outageAug 17, 2026 · resolved in 1h 31m
Other LLM API providers to consider
- Perplexity API · #1 · 99.94% uptime
- Cohere · #2 · 99.94% uptime
- Groq · #3 · 99.94% uptime
- Cerebras Inference · #4 · 99.88% uptime