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

PreviewAug 13, 2026VerifiedAdded Sep 22, 2026

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.

LLMs Developer tools Performance

Read OpenAI's release notes

https://openai.com/index/previewing-ultrafast

Summaries of vendors' own notes. Product names and logos belong to their owners; logos via logo.dev.

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ChatGPTAug 10, 2026

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ChatGPTAug 18, 2026

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Also shipped on Aug 13, 2026

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Databricks Unity CatalogAug 13, 2026

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GASource

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PricingPricingRegionsSource

Databricks Databricks Data Intelligence PlatformAug 13, 2026

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GAPricingDeveloper toolsSource

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