Third-party dispatches, not graded receipts
ChatGPT, Claude, Grok, and Gemini all suffered overlapping downtime
Four major AI services reported near-simultaneous service interruptions on September 3, an unusually broad outage across the frontier-model providers.
“## [Four major AI models suffer rare overlapping downtime](https://arstechnica.com/ai/2026/09/four-major-ai-models-suffer-rare-overlapping-downtime/) Service interruptions hit ChatGPT, Claude, Grok, and Gemini practically simultaneously.”