AI Platforms ChatGPT Claude Grok Disrupted Sept 3

Major generative artificial intelligence platforms experienced widespread disruptions on Thursday, September 3, 2026, affecting millions of users globally. ChatGPT, Claude, and Grok, three of the leading AI chatbots, all reported significant outages or elevated error rates, leaving users unable to access services or receive responses. The disruptions began Thursday morning, with users reporting issues across multiple regions. Downdetector, a service that tracks user-submitted outage reports, showed a sharp surge in complaints. By late afternoon, reports for ChatGPT had climbed to over 37,000, while Claude saw over 1,300 reports at one point, though earlier figures indicated complaints for Claude had crossed 6,000. OpenAI, the company behind ChatGPT, confirmed it was investigating elevated errors affecting ChatGPT and its coding agent, Codex. Users reported that ChatGPT's work mode was unavailable, impacting both web and mobile applications, with Plus subscribers among those affected. Anthropic, the developer of Claude, also acknowledged increased errors across several of its models, including Claude Code and Claude Chat.