AI Chat Assistants · reliability comparison
Grok vs Pi: which is more reliable? (2026)
Grok is more reliable than Pi, scoring 83.4 vs 57.0 out of 100. Over the last 90 days Grok reported 4 incidents and Pi reported 1, with effective uptime of 99.77% and 99.01% respectively. Grok resolves incidents faster on average (1h 19m).
Data updated Nov 1, 2026 · How we score
| Metric | Grok | Pi |
|---|---|---|
| Reliability score | 83.4 | 57.0 |
| Rank (AI chat assistants) | #3 | #5 |
| Uptime (90 days) | 99.77% | 99.01% |
| Incidents (90 days) | 4 | 1 |
| Partial / major outages | 4 | 1 |
| Avg time to resolve | 1h 19m | 21h 11m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Grok and Pi differ
- Grok reported 4× as many incidents as Pi over the last 90 days (4 vs 1).
- Grok had 4 partial or major outages, compared with 1 for Pi.
- Grok fixes problems faster: 1h 19m on average, against 21h 11m for Pi (16.2× quicker).
- Grok's longest outage on record lasted 3h 39m (Sep 3, 2026); Pi's lasted 21h 11m (Oct 22, 2026).
90-day uptime
Grok
Pi
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Grok incidents
- Partial outageOct 30, 2026 · resolved in 1h 3m
- Major outageOct 7, 2026 · resolved in 6m
- Major outageSep 22, 2026 · resolved in 26m
- Major outageSep 3, 2026 · resolved in 3h 39m
Recent Pi incidents
- Major outageOct 22, 2026 · resolved in 21h 11m
Other AI chat assistants to consider
- Gemini · #1 · 99.94% uptime
- Perplexity · #2 · 99.83% uptime
- DeepSeek Chat · #4 · 100% uptime
- Claude · #6 · 99.25% uptime