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OpenAI says Ultra Fast runs at eight times standard speed

At DevDay, a presenter said the service would reach API, ChatGPT and Codex; OpenAI's public materials describe earlier speed tiers with different multipliers.

By Ryan Merket · Published Sep 29th, 2026, 12:32pm CT

A conference stage screen shows eight motion trails for OpenAI’s Ultra Fast speed claim.

At DevDay, a presenter said the service would reach API, ChatGPT and Codex; OpenAI's public materials describe earlier speed tiers with different multipliers.

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