Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed
Via OpenAI Blog
Thursday, Aug 13, 2026 · 10:00AM
Summary
Preview Ultrafast, a new OpenAI API service tier that runs GPT-5.6 Sol up to 14× faster. Powered by Cerebras, it delivers up to 750 output tokens per second.
