OpenAI, Claude, and Grok all went down at once—users suspect a Cloudflare cascade

Ask HN: Why are OpenAI, Claude, and Grok simultaneously down? Coincidence?

A Hacker News thread noted that OpenAI, Claude, and Grok all went down around the same time. Users pointed to Downdetector spikes for Cloudflare, Azure, AWS, and Google Cloud near 7:30, suspecting a cascade from Cloudflare or another shared dependency. Other guesses include user migration overload and deliberate attack, but the post is community speculation—no official root cause is confirmed.

Why it matters: Simultaneous outage across OpenAI, Claude, and Grok with high HN engagement. Downdetector data points to Cloudflare or shared infra as a possible common cause. The event is conversation-worthy but lacks a confirmed root cause, so it lands at the 78 featured threshold rather th...