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OpenAI’s GPT-5.6 Sol runs up to 14× faster with Ultrafast mode

OpenAI's GPT-5.6 Sol with Ultrafast mode is now available in limited preview through the OpenAI API, running up to 14 times faster than Standard processing and generating up to 750 output tokens per second. The service is powered by Cerebras as part of the companies' partnership on ultra-low-latency inference.

read1 min views1 publishedAug 14, 2026

OpenAI’s GPT-5.6 Sol on Ultrafast mode is available in limited preview to a select group of customers, launching first through the OpenAI API. The company says the service runs up to 14 times faster than Standard processing and generates up to 750 output tokens per second. Ultrafast is powered by Cerebras as part of the companies’ partnership on ultra-low-latency inference. GPT-5.6 Sol Ultrafast and standard build a working 3D warehouse simulator from the same text … More

The post OpenAI’s GPT-5.6 Sol runs up to 14× faster with Ultrafast mode appeared first on Help Net Security.

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