OpenAI experienced a minor incident on April 23, 2026 affecting Codex Web and Codex API and 1 more component, lasting —. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Apr 23, 2026, 06:23 PM UTC
Status: Investigating We’re investigating elevated errors affecting Codex gpt-5.5 usage. Some users may see intermittent “not found” errors when starting or updating requests. We’re working to mitigate the issue and will share another update soon. Affected components VS Code extension (Degraded performance) Codex API (Degraded performance) Codex Web (Degraded performance) CLI (Degraded performance) App (Degraded performance)
- resolved Apr 23, 2026, 08:29 PM UTC
Status: Resolved GPT-5.5 is now available to all paid users in Codex. If you continue to see access issues, please update to the latest Codex version. We’ll share another update if needed. Affected components Codex Web (Operational) CLI (Operational) App (Operational) VS Code extension (Operational) Codex API (Operational)