Reliability · last 90 days · from official status pages
Anthropic vs OpenAI.
OpenAI has reported the least downtime — 8d 12h across 47 incidents in the last 90 days.
| Service | Uptime | Incidents | Downtime | Avg recovery | Longest |
|---|---|---|---|---|---|
| OpenAIOperational | 90.6% | 47 | 8d 12h | 4h 20m | 1d 18h |
| AnthropicDegraded | 90.1% | 63 (1 ongoing) | 8d 22h | 2h 59m | 4d 3h |
"Uptime" = not reporting an incident on the official status page; incident history from each provider's published archive plus our live tracking since May 22, 2026. Reported numbers understate real-world impact — providers acknowledge incidents late and close them early — but they understate it for everyone equally, which is what makes the comparison fair. Live status: Anthropic · OpenAI.
Compare differently
AWS vs Microsoft Azure vs Google Cloud · AWS vs Microsoft Azure · AWS vs Google Cloud · Microsoft Azure vs Google Cloud · Netlify vs Vercel · Heroku vs Render · Netlify vs Render vs Vercel · Anthropic vs Google Gemini vs OpenAI