SpaceXAI said an outage at its Memphis compute center disrupted Grok for more than three hours on Thursday and also affected unnamed “compute partners.”
SpaceXAI apologized in a post, saying all systems had been restored and were “functioning nominally” after the incident.
“We are sorry for the issues you may have experienced with Grok following an outage at our Memphis compute center this morning,” the company said. “We’d also like to apologize to our impacted compute partners.”
Grok was down for three and a half hours starting at 6:30 a.m. PT, according to a company status page. The incident was labeled a “models outage” and affected Grok on X, as well as its Android and iOS apps.
SpaceXAI did not disclose the cause of the Memphis outage. Elon Musk said in a separate post that the company was “taking corrective action to ensure this does not happen again.”
Anthropic’s Claude also ran into problems starting around 6:30 a.m. PT, according to the company’s status page, which cited “elevated errors for multiple models.” The issue affected Claude Mythos 5.1, Claude Fable 5.1 and Claude Opus 5, and was marked resolved by 9:16 a.m. PT.
Anthropic has not said whether its issue was related to the SpaceXAI outage. Earlier this year, Anthropic signed a deal to lease compute from Musk’s AI firm.
OpenAI also reported an outage on Thursday morning that caused “elevated errors across ChatGPT and Codex,” the company said. Users began reporting problems around 7:30 a.m. PT on Downdetector, and OpenAI said the issue was resolved by 9:55 a.m. PT without giving a cause.
Anthropic and OpenAI did not immediately respond to requests for comment.
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