OpenAI Unveils Ultrafast Mode: GPT-5.6 Sol Delivers 14x Speed Boost at 750 Tokens Per Second
OpenAI has launched Ultrafast, a new API service tier that runs GPT-5.6 Sol at 14 times standard speed, reaching 750 output tokens per second on Cerebras chips. The limited preview targets time-sensitive corporate workflows including incident response, customer service, and financial analysis, marking a shift in the AI race from intelligence to speed.