AI Chat Assistants · reliability comparison
DeepSeek Chat vs Microsoft Copilot: which is more reliable? (2026)
Microsoft Copilot is more reliable than DeepSeek Chat, scoring 100.0 vs 77.3 out of 100. Over the last 90 days DeepSeek Chat reported 20 incidents and Microsoft Copilot reported 0, with effective uptime of 100% and 100% respectively.
Data updated Nov 1, 2026 · How we score
VS
| Metric | DeepSeek Chat | Microsoft Copilot |
|---|---|---|
| Reliability score | 77.3 | 100.0 |
| Rank (AI chat assistants) | #4 | — |
| Uptime (90 days) | 100% | 100% |
| Incidents (90 days) | 20 | 0 |
| Partial / major outages | 4 | 0 |
| Avg time to resolve | — | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where DeepSeek Chat and Microsoft Copilot differ
- Microsoft Copilot reported no incidents in the last 90 days, while DeepSeek Chat reported 20.
- DeepSeek Chat had 4 partial or major outages, compared with 0 for Microsoft Copilot.
90-day uptime
DeepSeek Chat
Microsoft Copilot
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent DeepSeek Chat incidents
- Degraded performanceOct 20, 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)
- Major outageOct 12, 2026 · resolved (duration not published)
- Degraded performanceOct 8, 2026 · resolved (duration not published)
- Degraded performanceOct 1, 2026 · resolved (duration not published)
Recent Microsoft Copilot incidents
No incidents reported by Microsoft Copilot in the last 90 days.
Other AI chat assistants to consider
- Gemini · #1 · 99.94% uptime
- Perplexity · #2 · 99.83% uptime
- Grok · #3 · 99.77% uptime
- Pi · #5 · 99.01% uptime