OpenAI Restores Codex After GPT 5.5 Error Surge — Is Chatgpt Down

Users asking is chatgpt down ran into Codex trouble on Jun 16, 2026, when GPT 5.5 in Codex hit elevated error rates and model at capacity messages. OpenAI later showed recovery at 9:48 a.m. Eastern Time, and its status page said all impacted services had now fully recovered.

GPT 5.5 in Codex

OpenAI’s status page used the exact phrase “Elevated error rates for GPT 5.5 in Codex.” That points to a specific failure mode inside a developer-facing code generation and automation tool, not a broad product redesign.

The first dashboard error appeared at 6:32 a.m. Eastern Time. For users in the middle of coding work, that meant the service was already failing before the morning had really started.

Thibault Sottiaux on X

Thibault Sottiaux, the Codex lead, wrote, “We are aware that some Codex users are experiencing high error rates with 'model at capacity' and are working to bring things back to being stable.” That is the clearest signal that the team was handling a live incident rather than a routine maintenance window.

Community posts on OpenAI’s developer forum recorded user reports and follow-up discussion. Third-party outage aggregators also logged the same pattern for Codex and ChatGPT features, which shows the disruption reached beyond a single dashboard.

OpenAI status page

OpenAI’s status indicator showed recovery at 9:48 a.m. Eastern Time. The status page then said, “All impacted services have now fully recovered.”

That leaves one practical question for Codex users: whether the same pattern of elevated error rates and capacity messages will recur under load. For anyone relying on Codex in a workday, the service is back now, but the morning outage showed how quickly access can degrade when the model hits strain.