AI Chat Assistants · reliability comparison
Gemini vs Perplexity: which is more reliable? (2026)
Gemini is more reliable than Perplexity, scoring 88.0 vs 84.0 out of 100. Over the last 90 days Gemini reported 1 incident and Perplexity reported 8, with effective uptime of 99.94% and 99.83% respectively. Perplexity resolves incidents faster on average (1h 19m).
Data updated Nov 1, 2026 · How we score
| Metric | Gemini | Perplexity |
|---|---|---|
| Reliability score | 88.0 | 84.0 |
| Rank (AI chat assistants) | #1 | #2 |
| Uptime (90 days) | 99.94% | 99.83% |
| Incidents (90 days) | 1 | 8 |
| Partial / major outages | 0 | 3 |
| Avg time to resolve | 7h 22m | 1h 19m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Gemini and Perplexity differ
- Perplexity reported 8× as many incidents as Gemini over the last 90 days (8 vs 1).
- Perplexity had 3 partial or major outages, compared with 0 for Gemini.
- Perplexity fixes problems faster: 1h 19m on average, against 7h 22m for Gemini (5.6× quicker).
- Gemini's longest outage on record lasted 3d (Feb 18, 2026); Perplexity's lasted 4h 31m (Jun 4, 2026).
90-day uptime
Gemini
Perplexity
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Gemini incidents
- Degraded performanceSep 11, 2026 · resolved in 7h 22m
Mitigated intermittent elevated error rates with Gemini 3.1 Pro models on Gemini Web and Gemini App.
Affected: Gemini
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: Computer, API, Website, App
- MaintenanceSep 7, 2026 · ongoing
Status page migration to incident.io
Affected: Website, App, Computer
- 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
Other AI chat assistants to consider
- Grok · #3 · 99.77% uptime
- DeepSeek Chat · #4 · 100% uptime
- Pi · #5 · 99.01% uptime
- Claude · #6 · 99.25% uptime