Four major AI chatbot services (ChatGPT, Gemini, Claude, Grok) experienced simultaneous outages starting around 8:26–9:58 PM, as confirmed by DownDetector and official status updates. While individual service downtime occurs occasionally, a coordinated outage across all major AI platforms is unprecedented and signals potential infrastructure or upstream dependency issues. Services are now recovering. This affects Thai tech workers and businesses relying on these AI tools for productivity.