Outage recap · xAI

Grok outage — September 3, 2026

On September 3, 2026, Grok had a reported incident on xAI's official status page. Below is what was reported — impact, timing, and the AI services the same upstream outage could affect.

Models outage

critical
Started
Sep 3, 9:30 AM EDT
Resolved
Sep 3, 1:09 PM EDT
Duration
3h 39m

xAI's updates (2)

  1. investigating · Sep 3, 9:30 AM EDT

    Grok is experiencing issues. We are working on restoring service as quickly as possible.

  2. resolved · Sep 3, 1:09 PM EDT

    We have resolved the situation, and traffic is healthy again.

What our checks recorded

We checked Grok 44 times from xAI's start time to its resolution, once every five minutes. Every one of them reached Grok's site, so this incident did not show up as a failed page load. Our check loads the public site; it cannot see an API error or a broken feature. Median response time was 254 ms, against 242 ms over the 24 hours before. xAI posted the incident at Sep 3, 9:30 AM EDT.

Updates are xAI's own words from its status page (status: resolved); we never add an inferred cause.

The AI cascade

Grok depends on xAI. When that upstream has an incident, it doesn't hit Grok alone — these AI tools share the dependency and can degrade at the same time:

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AIDownCheck is not affiliated with xAI. This recap summarizes incidents published on xAI's official status page.