Category
Outage
A major AI service or model becomes unavailable.
- Three infrastructure bugs degrade Claude’s responses for weeks
Anthropic reported that three overlapping infrastructure bugs lowered the quality of Claude’s answers between August and early September 2025, and explained why they were slow to detect.
Anthropic · Intermittently degraded responses from early August to mid-September; 16% of Sonnet 4 requests affected at the worst hour
- New telemetry service takes down OpenAI’s API, ChatGPT and Sora for hours
A new telemetry service caused every node in OpenAI’s clusters to make heavy Kubernetes API calls, which took down the control plane and, with it, all OpenAI services.
OpenAI · All OpenAI services degraded or unavailable from 3:16 PM to 7:38 PM PST
No incidents match these filters.