A post on Hacker News reported a situation where major AI services, such as OpenAI, Claude, and Grok, were down simultaneously.
Major AI Services Including OpenAI, Claude, and Grok Experience Simultaneous Outages
This article is a translation. Read the Japanese original
Users have raised questions as to whether these outages are a mere coincidence.
Some pointed to the possibility of downtime across infrastructure services, including Cloudflare, Windows Azure, AWS, and Google Cloud.
One user speculated that a problem occurring in one service may have caused users to migrate to other services, leading to a chain reaction of overloading.
Additionally, the possibility that these services share overlapping data center regions was mentioned.
Source: Ask HN: Why are OpenAI, Claude, and Grok simultaneously down? Coincidence? (Hacker News Frontpage, 2026-09-04)