ChatGPT, Claude, Codex and Grok go down in the same window; OpenAI and Anthropic confirm elevated errors
rohanpaul_ai · x · 2026-09-04
ChatGPT, Claude, Codex, and Grok all experienced service disruptions within the same window. OpenAI and Anthropic officially acknowledged elevated errors across ChatGPT, Codex, and Claude. A simultaneous outage across all four major AI services is extremely rare and underscores the industry's concentrated dependence on a handful of inference providers.
Related event: ChatGPT, Claude, and Grok suffer rare simultaneous outage(74 posts)→
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