AI Chat Assistants · reliability comparison
DeepSeek Chat vs Perplexity: which is more reliable? (2026)
Perplexity is more reliable than DeepSeek Chat, scoring 84.0 vs 77.3 out of 100. Over the last 90 days DeepSeek Chat reported 20 incidents and Perplexity reported 8, with effective uptime of 100% and 99.83% respectively.
Data updated Nov 1, 2026 · How we score
VS
| Metric | DeepSeek Chat | Perplexity |
|---|---|---|
| Reliability score | 77.3 | 84.0 |
| Rank (AI chat assistants) | #4 | #2 |
| Uptime (90 days) | 100% | 99.83% |
| Incidents (90 days) | 20 | 8 |
| Partial / major outages | 4 | 3 |
| Avg time to resolve | — | 1h 19m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where DeepSeek Chat and Perplexity differ
- DeepSeek Chat reported 2.5× as many incidents as Perplexity over the last 90 days (20 vs 8).
- DeepSeek Chat had 4 partial or major outages, compared with 3 for Perplexity.
90-day uptime
DeepSeek Chat
Perplexity
- 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 Perplexity incidents
- MaintenanceOct 13, 2026 · ongoing
Scheduled Computer Maintenance
Affected: Computer
- Degraded performanceOct 9, 2026 · resolved in 37m
Elevated API errors and timeouts
Affected: Website, App, Computer, API
- MaintenanceSep 7, 2026 · ongoing
Status page migration to incident.io
Affected: Computer, Website, App
- Partial outageSep 5, 2026 · resolved in 2h 19m
We have identified few connectors that are impacting users.
Affected: Computer
- Major outageSep 3, 2026 · resolved in 40m
Issue with usage based billing
Affected: Computer
- InformationalAug 31, 2026 · resolved in 34m
Affected: Computer