432.Caching for GPT-5.5 only works with extended prompt caching. In-memory prompt ca...4 months ago|OpenAI/OpenAI APIAPIv5.5
433.When image_detail is unset or set to auto, the model now uses original behavior.4 months ago|OpenAI/OpenAI APIAPI
440.Supervised fine-tuning Vision fine-tuning Direct preference optimi...4 months ago|OpenAI/OpenAI APIAPI
441.Managing conversations Voice activity detection Realtime with tool...4 months ago|OpenAI/OpenAI APIAPI