On 2025-09-03, outages occurred within the AI services of OpenAI, Anthropic, and xAI during the same time period.
OpenAI announced that routing errors began occurring around 7:43 AM PT, making ChatGPT and Codex unavailable to some users. A fix was implemented around 8:17 AM, and monitoring is ongoing.
Anthropic reported an increase in errors across multiple Claude models starting around 6:23 AM on the same day. The company stated that it has identified the cause and applied a fix, announcing that the issue was resolved by 9:16 AM.
xAI has disclosed that an outage occurred across all Grok platforms starting around 6:30 AM. Its parent company, SpaceX, explained that the issue stemmed from a shutdown at its computing center in Memphis. SpaceX and Anthropic entered into a computing partnership in May 2025.
While there were scattered reports of temporary disruptions with Google Gemini, Google has not acknowledged them. Cloud providers have not reported any outages regarding this day's events.
Source: Nobody Is Saying Why OpenAI and Anthropic Had Outages (Hacker News Frontpage, 2026-09-05)