Nvidia shares rose after it said Blackwell GPUs power OpenAI's GPT-6 Astra Ultrafast, delivering up to eight times faster token generation than Astra Standard.
OpenAI has made available a new ultra-fast version of its latest model, and the speed jump comes mainly thanks to the NVIDIA GPU acceleration. The company announced on October 1, 2026 that GPT-6 Astra Ultrafast, a faster variant of the Astra model line, is already active in the OpenAI API and is available for [...]