Service comparison

DeepSeek vs. ChatGPT

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

Last 90 days · 79 incidents total · Data via Pulsetic monitoring

Head-to-head

90-day summary

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 →
ChatGPT

chatgpt.com

Ongoing incident
- 90-day uptime
  
  70.51%
- Incidents (90d)
  
  74
  
  8 major · 66 minor
- Median resolution
  
  1h 39m
- Longest outage
  
  264h 55m
View status page →

Uptime over time

Availability across windows

Window	DeepSeek	ChatGPT	Δ
Last 24 hours	100.00%	95.97%	+4.03 pp
Last 7 days	100.00%	96.62%	+3.38 pp
Last 30 days	100.00%	52.29%	+47.71 pp
Last 90 days	99.75%	70.51%	+29.24 pp

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

Incidents 90-day

Severity breakdown

DeepSeek

5 total

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

74 total

8 major 66 minor
- Median resolution
  
  1h 39m
- 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 9
  
  Users are experiencing elevated errors when selecting models
  
  58m
  
  Minor
- Jul 7
  
  Elevated errors with image generation in ChatGPT
  
  4h 43m
  
  Minor
- Jul 1
  
  Codex, workspace analytics, conversation search, searching for custom GPTs, ChatGPT user invites, and Compliance Log Platform download endpoint not working in FedRAMP workspaces
  
  Ongoing
  
  Minor
- Jun 27
  
  Issues with ChatGPT Windows desktop app
  
  5h 28m
  
  Minor
- Jun 26
  
  Codex Usage Limits Depleting Faster Than Expected
  
  3d 2m
  
  Minor
View all incidents →

Bottom line

DeepSeek wins

DeepSeek edges out on 90-day uptime.

DeepSeek posted 99.75% vs. 70.51% for ChatGPT (Δ +29.24 pp). Incidents: 5 vs. 74 (-69).

Also compare

Other DeepSeek comparisons

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