OpenAI’s new Ultrafast mode runs GPT-5.6 Sol 14 times faster, on Cerebras chips

OpenAI wants its cleverest model to also be its quickest. The company has previewed Ultrafast, a new tier of its API that runs the flagship GPT-5.6 Sol at up to 14 times the usual speed, reaching around 750 output tokens a second, on hardware built by the wafer-scale chipmaker Cerebras. Ultrafast is not a new model […]
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