Service comparison

DeepSeek vs. ChatGPT

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

Last 90 days · 97 incidents total · Data via Pulsetic monitoring

Head-to-head

90-day summary

DeepSeek

deepseek.com

Online
- 90-day uptime
  
  99.96%
- Incidents (90d)
  
  3
  
  2 major · 1 minor
- Median resolution
  
  11m
- Longest outage
  
  33m
View status page →
ChatGPT

chatgpt.com

Ongoing incident
- 90-day uptime
  
  60.01%
- Incidents (90d)
  
  94
  
  14 major · 80 minor
- Median resolution
  
  1h 42m
- Longest outage
  
  264h 55m
View status page →

Uptime over time

Availability across windows

Window	DeepSeek	ChatGPT	Δ
Last 24 hours	100.00%	100.00%	0.00 pp
Last 7 days	100.00%	54.88%	+45.12 pp
Last 30 days	100.00%	46.59%	+53.41 pp
Last 90 days	99.96%	60.01%	+39.95 pp

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

Incidents 90-day

Severity breakdown

DeepSeek

3 total

2 major 1 minor
- Median resolution
  
  11m
- Longest outage
  
  33m
ChatGPT

94 total

14 major 80 minor
- Median resolution
  
  1h 42m
- Longest outage
  
  264h 55m

Recent activity

Last 5 incidents, side-by-side

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 →
ChatGPT
- Jul 29
  
  Elevated error rates with the invalid_prompt error code
  
  1h 24m
  
  Minor
- Jul 28
  
  Elevated Image Generation Error Rate in ChatGPT
  
  35m
  
  Minor
- Jul 27
  
  Image generation unavailable in ChatGPT
  
  1h 19m
  
  Minor
- Jul 27
  
  We’re seeing elevated latency, timeouts, and interrupted streaming across gpt 5.1 mini model and gpt 4.1 mini
  
  36m
  
  Minor
- Jul 25
  
  Elevated errors affecting ChatGPT conversations
  
  1d 18h 22m
  
  Minor
View all incidents →

Bottom line

DeepSeek wins

DeepSeek edges out on 90-day uptime.

DeepSeek posted 99.96% vs. 60.01% for ChatGPT (Δ +39.95 pp). Incidents: 3 vs. 94 (-91).

Also compare

Other DeepSeek comparisons

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