OpenAI brings Astra Ultrafast to Codex on Enterprise and Pro 500
OpenAI says its Ultrafast speed tier for Astra is available in Codex and ChatGPT Work on Enterprise plans and through the new Pro 500 plan. The company says Codex generation reaches up to 300 tokens per second; Ultrafast is also available to developers through the API.
SessionWatcher editorial · Published · Updated · Source announcement: 2026-09-30
Related guide: How to check your Codex usage
Astra gets Ultrafast in Codex
OpenAI says Ultrafast, its premium speed tier, is available for Astra in Codex and ChatGPT Work on Enterprise plans and through the new Pro 500 plan. The post describes Codex Ultrafast as offering up to eight times faster token generation, at 300 tokens per second.
For subscribers deciding whether the feature is included in their access, OpenAI names Enterprise plans and Pro 500. The announcement does not give the price of Pro 500 or further eligibility details, so those are not specified here.
API availability and next model
Ultrafast for Astra is also available to all developers through the API. OpenAI says Ultrafast for GPT-6.1 Sol is coming soon, without giving a date in the announcement.
The release therefore adds a Codex and ChatGPT Work path for Astra Ultrafast alongside its API availability. OpenAI describes different maximum speed claims for the two contexts: up to 8x faster token generation in Codex and up to 6x in the API.
AI assisted reporting, checked against the linked official sources. Source pages checked 2026-10-03. Editorial process and corrections.