Reliability · last 90 days · from official status pages
Anthropic vs OpenAI.
OpenAI has reported the least downtime — 6d 18h across 39 incidents in the last 90 days.
| Service | Uptime | Incidents | Downtime | Avg recovery | Longest |
|---|---|---|---|---|---|
| OpenAIOperational | 92.5% | 39 | 6d 18h | 4h 9m | 1d 18h |
| AnthropicOperational | 91.5% | 57 | 7d 15h | 3h 13m | 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.
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