SIRumors
OfficialSep 29, 2026 ·

Ultrafast is available today for GPT-6 Astra in Codex, ChatGPT Work, and the API, with GPT-6.1 Sol coming soon.

OpenAI

To access it in Codex and ChatGPT Work, we’re introducing Pro 500—a new plan with our highest usage limits (25x Plus) and access to Ultrafast.

Published
Sep 29, 2026
Source
The company itself

Reported by: OpenAI on X

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