Service comparison

ChatGPT vs. Claude

ChatGPT vs. Claude — reliability, API availability, and incident frequency head-to-head.

Last 90 days · 61 incidents total · Data via Pulsetic monitoring

Head-to-head

90-day summary

ChatGPT

chatgpt.com

Online
- 90-day uptime
  
  100.00%
- Incidents (90d)
  
  0
  
  0 major · 0 minor
- Median resolution
  
  —
- Longest outage
  
  —
View status page →
Claude

claude.ai

Online
- 90-day uptime
  
  96.73%
- Incidents (90d)
  
  61
  
  19 major · 42 minor
- Median resolution
  
  39m
- Longest outage
  
  18h 3m
View status page →

Uptime over time

Availability across windows

Window	ChatGPT	Claude	Δ
Last 24 hours	100.00%	95.49%	+4.51 pp
Last 7 days	100.00%	84.29%	+15.71 pp
Last 30 days	100.00%	91.56%	+8.44 pp
Last 90 days	100.00%	96.73%	+3.27 pp

Δ is percentage-point difference (ChatGPT minus Claude). Higher is better.

Incidents 90-day

Severity breakdown

ChatGPT

0 total

0 major 0 minor
- Median resolution
  
  —
- Longest outage
  
  —
Claude

61 total

19 major 42 minor
- Median resolution
  
  39m
- Longest outage
  
  18h 3m

Recent activity

Last 5 incidents, side-by-side

ChatGPT

No incidents recorded in the last 90 days.
Claude
- May 12
  
  Elevated errors on Claude Opus 4.7
  
  19m
  
  Major
- May 12
  
  Elevated errors for Claude Sonnet 4.6 and Haiku 4.5
  
  36m
  
  Major
- May 12
  
  Elevated Error Rate for Vaults and Credentials
  
  10m
  
  Minor
- May 9
  
  Claude Code on the Web Partial Outage
  
  17m
  
  Minor
- May 9
  
  Elevated errors on Claude Opus 4.1
  
  25m
  
  Minor
View all incidents →

Bottom line

ChatGPT wins

ChatGPT edges out on 90-day uptime.

ChatGPT posted 100.00% vs. 96.73% for Claude (Δ +3.27 pp). Incidents: 0 vs. 61 (-61).

Also compare

Other ChatGPT comparisons

Monitor any service like this.

Pulsetic watches endpoints from 15+ global regions and alerts you before users notice.

Start monitoring free