ChatGPT, Claude and Grok went down together — cue the monkey memes

Three hours and six minutes — that's how long Claude was down on Thursday 3 September, and it wasn't alone. OpenAI hit a routing error that broke ChatGPT and Codex from roughly 7:43 to 8:17 AM PT. Grok's team opened an investigation at 6:30 AM PT. Claude came back at 16:16 UTC, with Opus 4.8, Opus 5 and Sonnet 5 the last to recover across claude.ai, Claude Code and the API.

Nobody has produced one clean cause. xAI pointed at its own Memphis compute center; several outlets bet on a regional failure inside Microsoft Azure's East US footprint; Cloudflare publicly ruled itself out, and the big three cloud status pages stayed green. Three rivals falling inside one window is either a hell of a coincidence or evidence that the industry's redundancy is thinner than the branding suggests.

Then the internet did what it does. X filled with developers admitting they'd forgotten how to write a loop unassisted, and Elon Musk poured petrol on it by sharing an orangutan clip fumbling a hammer — humans coding without AI. By evening the running gag was future superintelligence watching us work like a nature documentary about clumsy primates.

Why it matters: the funniest outage of the year is also the clearest stress test of how much of the world's code now depends on three companies staying up at the same time.