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

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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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Also shipped Aug 13, 2026OpenAI in August 2026 →

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Testing ads in ChatGPT

OpenAI begins testing ads in ChatGPT to support free access, with clear labeling, answer independence, strong privacy protections, and user control.

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