Outage recap · OpenAI

ChatGPT outage — August 20, 2026

On August 20, 2026, ChatGPT had 2 reported incidents on OpenAI's official status page. Below is what was reported — impact, timing, and the AI services the same upstream outage could affect.

Elevated Errors for Thinking mode in ChatGPT

minor
Started
Aug 20, 9:56 AM EDT
Resolved
Duration
not marked resolved

As reported by OpenAI's official status page (status: monitoring). We report the vendor's own words, never an inferred cause.

Elevated Codex API authentication errors

minor
Started
Aug 20, 12:58 PM EDT
Resolved
Duration
not marked resolved

As reported by OpenAI's official status page (status: monitoring). We report the vendor's own words, never an inferred cause.

The AI cascade

ChatGPT depends on OpenAI. When that upstream has an incident, it doesn't hit ChatGPT alone — these AI tools share the dependency and can degrade at the same time:

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AIDownCheck is not affiliated with OpenAI. This recap summarizes incidents published on OpenAI's official status page.