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ChatGPT: Elevated errors for GPT-5.6 Sol on the API

Affected components: Chat CompletionsResponses

Timeline of updates

1. identified2026-09-11 09:08 UTC

   We have identified that users are experiencing elevated errors for the impacted services. We are working on implementing a mitigation.

2. monitoring2026-09-11 10:09 UTC

   We have brought additional capacity online and are seeing improvements for some GPT-5.6 Sol API traffic. We continue to mitigate elevated errors affecting Chat Completions and Responses and are monitoring recovery

3. resolved2026-09-11 11:21 UTC

   All impacted services have now fully recovered.

Impact, status and times are the vendor’s own, as last archived. View on status.openai.com (opens in new tab). ChatGPT profile · Recent ChatGPT incidents · Markdown · JSON