Four Major AI Models Suffer Rare Overlapping Downtime
(Saturday September 05, 2026 @06:34PM (BeauHD)
from the unusually-synchronized dept.)
ChatGPT, Claude, Grok, and Gemini [1]all suffered significant service disruptions within roughly the same few-hour window Thursday morning. [2]OpenAI and [3]Anthropic reported elevated errors and later restored service, while Grok remained [4]impaired and third-party monitoring [5]indicated a likely Gemini [6]outage despite no public acknowledgment from Google. Ars Technica reports:
> Other major Internet services, including [7]Amazon Web Services , [8]Microsoft Azure , and [9]Cloudflare , have not reported any major issues as of press time Thursday, though issue reports on DownDetector did spike somewhat for all three this morning.
>
> While the affected frontier models go down occasionally, having all four experience interruptions in the same short period is practically unheard of. Claude [10]reports 99.4 percent uptime for its services over the last 90 days and last reported a similar three-hour "partial outage" [11]on August 24 . OpenAI [12]reports 99.63 percent uptime for ChatGPT and 100 percent uptime for ChatGPT Codex in the same period. ChatGPT's so-called "Work Mode" reported an hours-long period of "elevated latency" [13]on August 31 .
[1] https://arstechnica.com/ai/2026/09/four-major-ai-models-suffer-rare-overlapping-downtime/
[2] https://status.openai.com/incidents/01M1KWEDH417T2CF44YYHZDFCR
[3] https://status.claude.com/incidents/461yvfrzpwtt
[4] https://downdetector.com/status/grok/
[5] https://downdetector.com/status/googlegemini/
[6] https://statusgator.com/services/google-ai-studio-and-gemini-api
[7] https://health.aws.amazon.com/health/status
[8] https://azure.status.microsoft/en-us/status
[9] https://www.cloudflarestatus.com/services
[10] https://status.claude.com/
[11] https://status.claude.com/incidents/vgz5psbjmt1h
[12] https://status.openai.com/
[13] https://status.openai.com/incidents/01M1C5M4K0WC8PPT0Z175RJA1E
> Other major Internet services, including [7]Amazon Web Services , [8]Microsoft Azure , and [9]Cloudflare , have not reported any major issues as of press time Thursday, though issue reports on DownDetector did spike somewhat for all three this morning.
>
> While the affected frontier models go down occasionally, having all four experience interruptions in the same short period is practically unheard of. Claude [10]reports 99.4 percent uptime for its services over the last 90 days and last reported a similar three-hour "partial outage" [11]on August 24 . OpenAI [12]reports 99.63 percent uptime for ChatGPT and 100 percent uptime for ChatGPT Codex in the same period. ChatGPT's so-called "Work Mode" reported an hours-long period of "elevated latency" [13]on August 31 .
[1] https://arstechnica.com/ai/2026/09/four-major-ai-models-suffer-rare-overlapping-downtime/
[2] https://status.openai.com/incidents/01M1KWEDH417T2CF44YYHZDFCR
[3] https://status.claude.com/incidents/461yvfrzpwtt
[4] https://downdetector.com/status/grok/
[5] https://downdetector.com/status/googlegemini/
[6] https://statusgator.com/services/google-ai-studio-and-gemini-api
[7] https://health.aws.amazon.com/health/status
[8] https://azure.status.microsoft/en-us/status
[9] https://www.cloudflarestatus.com/services
[10] https://status.claude.com/
[11] https://status.claude.com/incidents/vgz5psbjmt1h
[12] https://status.openai.com/
[13] https://status.openai.com/incidents/01M1C5M4K0WC8PPT0Z175RJA1E