Service comparison

ChatGPT vs. DeepSeek

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

Last 90 days · 82 incidents total · Data via Pulsetic monitoring

Head-to-head

90-day summary

ChatGPT

chatgpt.com

Online
- 90-day uptime
  
  59.44%
- Incidents (90d)
  
  77
  
  9 major · 68 minor
- Median resolution
  
  1h 40m
- Longest outage
  
  264h 55m
View status page →
DeepSeek

deepseek.com

Online
- 90-day uptime
  
  99.75%
- Incidents (90d)
  
  5
  
  3 major · 2 minor
- Median resolution
  
  33m
- Longest outage
  
  3h 28m
View status page →

Uptime over time

Availability across windows

Window	ChatGPT	DeepSeek	Δ
Last 24 hours	76.53%	100.00%	-23.47 pp
Last 7 days	23.28%	100.00%	-76.72 pp
Last 30 days	19.77%	100.00%	-80.23 pp
Last 90 days	59.44%	99.75%	-40.31 pp

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

Incidents 90-day

Severity breakdown

ChatGPT

77 total

9 major 68 minor
- Median resolution
  
  1h 40m
- Longest outage
  
  264h 55m
DeepSeek

5 total

3 major 2 minor
- Median resolution
  
  33m
- Longest outage
  
  3h 28m

Recent activity

Last 5 incidents, side-by-side

ChatGPT
- Jul 12
  
  Elevated conversation and login errors on ChatGPT for iOS and macOS
  
  5h 38m
  
  Minor
- Jul 11
  
  Elevated Errors for Sora API
  
  28m
  
  Major
- Jul 10
  
  OpenAI website and Help Center content may be unavailable
  
  1h 54m
  
  Minor
- Jul 9
  
  Users are experiencing elevated errors when selecting models
  
  58m
  
  Minor
- Jul 7
  
  Elevated errors with image generation in ChatGPT
  
  4h 43m
  
  Minor
View all incidents →
DeepSeek
- May 8
  
  【已恢复】DeepSeek 网页/API不可用（[Resolved]DeepSeek Web/API Service Not Available）
  
  33m
  
  Major
- May 6
  
  【已恢复】DeepSeek 网页/API 性能异常（[Resolved]DeepSeek Web/API Service Degraded Performance）
  
  6m
  
  Minor
- May 6
  
  【已恢复】DeepSeek 网页/API 性能异常（[Resolved]DeepSeek Web/API Service Degraded Performance）
  
  11m
  
  Major
- Apr 22
  
  【已恢复】DeepSeek API 异常（[Resolved]DeepSeek API Abnormal）
  
  1h 3m
  
  Major
- Apr 20
  
  【已解决】DeepSeek Web/APP 快速模式性能异常（[Resolved]DeepSeek Web/APP Instant Mode Performance Abnormal）
  
  3h 28m
  
  Minor
View all incidents →

Bottom line

DeepSeek wins

DeepSeek edges out on 90-day uptime.

ChatGPT posted 59.44% vs. 99.75% for DeepSeek (Δ -40.31 pp). Incidents: 77 vs. 5 (+72).

Also compare

Other ChatGPT comparisons

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