Reliability · last 90 days · from official status pages
Anthropic vs OpenAI.
OpenAI has reported the least downtime — 3h 48m across 4 incidents in the last 90 days.
| Service | Uptime | Incidents | Downtime | Avg recovery | Longest |
|---|---|---|---|---|---|
| OpenAIOperational | 99.82% | 4 | 3h 48m | 57m | 2h 54m |
| AnthropicOperational | 99.82% | 4 | 3h 54m | 58m | 2h 6m |
"Uptime" = not reporting an incident on the official status page; tracking since August 18, 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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