ChatGPT, Claude and Grok All Hit by Simultaneous Outage
TL;DR
- Claude, ChatGPT and Codex, and Grok all experienced a widespread outage for many users starting around 7:57 AM PT on September 3, 2026.
- 9to5Mac reports the disruption might be tied to Cloudflare issues affecting multiple websites, with service returning for some after about half an hour.
- The downtime lands as OpenAI is rumored to unveil its next model, called Astra, potentially pushing its lineup from GPT-5.6 to GPT-6.
Three of the largest chatbots stopped responding for many users at nearly the same moment. In 9to5Mac's account, Claude, ChatGPT and Codex, and Grok were all "currently experiencing what appears" to be a widespread outage starting around 7:57 AM PT, hitting web, mobile and desktop clients. SpaceXAI confirmed Grok's service issue.
"All of the companies are investigating the outages, which might be related to Cloudflare issues that are affecting multiple websites that use the cloud platform," the piece reports, adding that service "appears to be coming back online for some after about half an hour." Multi-vendor outages tied to a single upstream provider recur across our AI infrastructure coverage, which has logged 447 stories in the last 90 days.
The timing is awkward. OpenAI is, per the same report, "rumored to share news around the launch of its next big model, called Astra, as soon as today," a rollout that would push its lineup from GPT-5.6 to GPT-6. Neither the article nor any of the three vendors has publicly named a root cause.
Originally reported by 9to5mac.com
Read the original article →Original headline: ChatGPT, Claude and Grok All Hit Elevated Errors Simultaneously in Rare Multi-Provider AI Outage