researchAugust 13, 2026·OpenAI Blog

Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed

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.

Key Takeaways

•Preview Ultrafast, a new OpenAI API service tier that runs GPT-5.6 Sol up to 14× faster
•This story was reported by OpenAI Blog, covering developments in the research space.
•AI advancements continue to reshape industries — read the full article on OpenAI Blog for complete coverage.

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Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed

Key Takeaways

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Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed

Key Takeaways

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