OpenAI is previewing a new way to run its most capable GPT-5.6 model at dramatically higher speeds. The company says its new Ultrafast service tier can run GPT-5.6 Sol up to 14 times faster than standard processing. Ultrafast mode launches first through the OpenAI API and is powered by Cerebras. It can generate up to 750 output tokens per second, potentially bringing frontier-level performance to workflows where latency matters as much as model intelligence. OpenAI introduced GPT-5.6 Sol in June...