Previewing Ultrafast mode: GPT-5.6 Sol at up to 14x the speed. Launching first in the OpenAI API to a select group of customers with expanded access to more bu

Previewing Ultrafast mode: GPT-5.6 Sol at up to 14x the speed. Launching first in the OpenAI API to a select group of customers with expanded access to more businesses as capacity grows. [▻](https://video.twimg.com/amplify_video/2087946208128237568/vid/avc1/3840x2160/f5AzYlplkSGF4UxX.mp4)