Service comparison

ChatGPT vs. DeepSeek

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

Last 90 days · 88 incidents total · Data via Pulsetic monitoring

Head-to-head

90-day summary

ChatGPT

chatgpt.com

Ongoing incident
- 90-day uptime
  
  61.61%
- Incidents (90d)
  
  88
  
  12 major · 76 minor
- Median resolution
  
  2h 7m
- Longest outage
  
  264h 55m
View status page →
DeepSeek

deepseek.com

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

Uptime over time

Availability across windows

Window	ChatGPT	DeepSeek	Δ
Last 24 hours	80.63%	100.00%	-19.37 pp
Last 7 days	84.23%	100.00%	-15.77 pp
Last 30 days	88.69%	100.00%	-11.31 pp
Last 90 days	61.61%	100.00%	-38.39 pp

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

Incidents 90-day

Severity breakdown

ChatGPT

88 total

12 major 76 minor
- Median resolution
  
  2h 7m
- Longest outage
  
  264h 55m
DeepSeek

0 total

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

Recent activity

Last 5 incidents, side-by-side

ChatGPT
- Sep 11
  
  1% of ChatGPT Work (mobile/web) turns are failing for existing threads
  
  Ongoing
  
  Minor
- Sep 11
  
  Elevated errors for GPT-5.6 Sol on the API
  
  2h 13m
  
  Minor
- Sep 11
  
  Elevated errors for ChatGPT users in Europe
  
  2h 23m
  
  Minor
- Sep 10
  
  Delays in customer support responses
  
  1h 55m
  
  Minor
- Sep 10
  
  Elevated errors affecting ChatGPT Work
  
  1h 40m
  
  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 61.61% vs. 100.00% for DeepSeek (Δ -38.39 pp). Incidents: 88 vs. 0 (+88).

Also compare

Other ChatGPT comparisons

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