47.Caching for GPT-5.5 only works with extended prompt caching. In-memory prompt ca...2 weeks ago|OpenAI/OpenAI APIAPIv5.5
48.When image_detail is unset or set to auto, the model now uses original behavior.2 weeks ago|OpenAI/OpenAI APIAPI
55.Supervised fine-tuning Vision fine-tuning Direct preference optimi...2 weeks ago|OpenAI/OpenAI APIAPI
56.Managing conversations Voice activity detection Realtime with tool...2 weeks ago|OpenAI/OpenAI APIAPI