OpenAI experienced elevated error rates and degraded latency with the Codex GPT-5.5 engine, affecting both ChatGPT and Codex services for 2.1 hours. Free users encountered high error rates while all Codex users experienced slower response times. The issue was mitigated and the service was restored to normal operation.
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We have applied the mitigation and are monitoring the recovery.
High error rate on codex gpt 5.5 for free users. Degraded latency on gpt 5.5 for all codex users.
We are currently experiencing elevated error rates for gpt-5.5.
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