Widespread Outage Hits ChatGPT, Claude, Grok, and Other Major AI Services
Multiple leading AI services, including OpenAI's ChatGPT, Anthropic's Claude, xAI's Grok, and Cursor, experienced simultaneous outages throwing errors such as 404 Not Found. Thousands of user reports flooded status tracking platforms like Downdetector during the disruption. The widespread failure across competing AI providers highlights the modern software ecosystem's growing dependence on LLM infrastructure for daily developer workflows. It also illustrates how AI outages are becoming the new equivalent of traditional developer service downtime. Downdetector registered over 12,000 incident reports for OpenAI, along with over 1,200 for Claude and 1,000 for Grok during the peak of the outage. Users attempting to send Codex requests specifically encountered 404 errors.
## BACKGROUND
Large Language Models (LLMs) like ChatGPT, Claude, and Grok are AI models widely integrated into software development tools like Cursor for code generation and debugging. When these cloud-hosted API services experience network or server outages, developers relying on AI assistance face immediate disruptions to their work.