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Before yesterdayArs Technica

Four major AI models suffer rare overlapping downtime

3 September 2026 at 14:10

Cloud-based AI models operated by OpenAI, Anthropic, xAI, and Google suffered a rare and overlapping set of significant service interruptions over a period of hours Thursday morning.

Anthropic first reported a "partial outage" related to "elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5" at 9:23 am (all times Eastern). The company reported that it had "identified the cause" of the error roughly 15 minutes later, before reporting that "a fix has been deployed" and the issue was resolved by 12:16 pm. A separate incident report indicated "elevated errors on requests to Claude Sonnet 5" for a brief period just after noon.

OpenAI, meanwhile, reported "elevated errors across ChatGPT and Codex" were resulting in "degraded performance" as of 10:43 am Thursday morning. A mitigation put in place a little more than half an hour later led to the issue being marked as "resolved" by 12:55 pm.

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Elon Musk’s xAI used child porn to train Grok models, lawsuit says

27 August 2026 at 16:52

xAI has now been accused of training Grok on child sex abuse materials (CSAM), as regulators and courts continue to probe how far theΒ problem goes, and some Grok users have been arrested.

In a complaint filed on Wednesday, a plaintiff known as Jane Doe explained that she was preschool-age in the early 2000s when adult men repeatedly raped her to create CSAM to sell to pedophiles online. Since then, Doe’s images have been hashed by groups like the National Center for Missing and Exploited Children (NCMEC) and the Canadian Centre for Child Protection (CCCP).

For her safety, Doe has opted to receive alerts from the US Department of Justice Victim Notification System any time she may be a victim in a new criminal investigation. Although she has received countless alerts, she was shocked when the CCCP notified her that it had identified AI-generated CSAM on xAI that depicted her. This re-traumatized Doe, whose complaint alleged that messages were found on online forums β€œbetween offenders chatting about creating AI generated CSAM of Plaintiff and other similarly situated known, legacy, victims of CSAM.”

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Β© CHARLY TRIBALLEAU / Contributor | AFP

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