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

OpenAI 13 August 2026, 10:00 ● Covered by 2 sources

OpenAI introduced a new API service tier, called Ultrafast, that runs GPT-5.6 Sol at speeds up to 14× faster. It can deliver up to 750 output tokens per second. Developers can choose this tier for higher-throughput GPT-5.6 Sol responses.

Why it matters

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.

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TLDRocket 4 September 2026

Nvidia’s $12.93 billion acquisition of Hugging Face is the day’s loudest signal that “open models” are becoming infrastructure. The deal, completed September 2, moves the French-founded platform entirely into US ownership, just as Hugging Face itself reports a library of more than 3 million models and roughly 18 million developers. The question now isn’t whether open-weight tooling works, but who gets paid once it turns into enterprise operations—safety evaluations, deployment pipelines, and inference in production. Nvidia’s play is to sit closer to the workflow than a box of GPUs ever could, and it pairs neatly with new Personal AI Router (PAIR), which aims to spread agentic sub-tasks across your home machines by clustering and redistributing work when nodes drop.

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

Why it matters

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