OpenAI reports elevated GPT-5.6 Sol API errors, adds capacity

OpenAI said it identified elevated errors affecting its GPT-5.6 Sol API and was implementing a mitigation. In a status update, the company said it had brought additional capacity online and was seeing improvements for some GPT-5.6 Sol API traffic, while continuing to mitigate elevated errors affecting Chat Completions and Responses and monitoring recovery. The incident page does not state a root cause, an affected region, or a resolution time, and the status remains in monitoring rather than resolved.