Service comparison

OpenAI vs. Claude

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

Last 90 days · 126 incidents total · Data via Pulsetic monitoring

Head-to-head

90-day summary

OpenAI

openai.com

Online
- 90-day uptime
  
  87.26%
- Incidents (90d)
  
  41
  
  4 major · 37 minor
- Median resolution
  
  1h 40m
- Longest outage
  
  139h
View status page →
Claude

claude.ai

Online
- 90-day uptime
  
  95.42%
- Incidents (90d)
  
  85
  
  30 major · 55 minor
- Median resolution
  
  44m
- Longest outage
  
  18h 3m
View status page →

Uptime over time

Availability across windows

Window	OpenAI	Claude	Δ
Last 24 hours	100.00%	100.00%	0.00 pp
Last 7 days	78.70%	95.32%	-16.62 pp
Last 30 days	67.01%	92.04%	-25.03 pp
Last 90 days	87.26%	95.42%	-8.16 pp

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

Incidents 90-day

Severity breakdown

OpenAI

41 total

4 major 37 minor
- Median resolution
  
  1h 40m
- Longest outage
  
  139h
Claude

85 total

30 major 55 minor
- Median resolution
  
  44m
- Longest outage
  
  18h 3m

Recent activity

Last 5 incidents, side-by-side

OpenAI
- May 29
  
  Users May Experience Issues Accessing ChatGPT
  
  8m
  
  Minor
- May 29
  
  Users may encounter issues with conversations
  
  1h 39m
  
  Minor
- May 29
  
  Users may encounter issues logging in or creating an account
  
  1h 44m
  
  Minor
- May 28
  
  Business plan subscription checkout issues on web and mobile web
  
  4h 43m
  
  Minor
- May 28
  
  Subscription checkout failing
  
  4h 7m
  
  Minor
View all incidents →
Claude
- May 29
  
  Elevated errors for Claude Opus 4.8
  
  36m
  
  Major
- May 29
  
  Elevated errors on Claude Opus 4.8
  
  15m
  
  Minor
- May 28
  
  Billing and subscription management issues
  
  19m
  
  Minor
- May 28
  
  Elevated errors on Claude Opus 4.7
  
  39m
  
  Major
- May 27
  
  Elevated errors on Claude Opus 4.7
  
  1h 37m
  
  Major
View all incidents →

Bottom line

Claude wins

Claude edges out on 90-day uptime.

OpenAI posted 87.26% vs. 95.42% for Claude (Δ -8.16 pp). Incidents: 41 vs. 85 (-44).

Also compare

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