Our premium speed tier, Ultrafast offers up to 8x faster token generation (300 tokens per second) in Codex and up to 6x in the API.
In Codex, Ultrafast generates code faster, so you can move more quickly from idea to code to iteration 
In the API, combine it with WebSocket mode in the Responses API to build real-time experiences with frontier intelligence.
Ultrafast is available for Astra in Codex and ChatGPT Work on Enterprise plans, and through the new Pro 500 plan.
Ultrafast for Astra is also available to all developers via the API.
Ultrafast for GPT-6.1 Sol is coming soon.
Get access to Ultrafast in Codex and ChatGPT Work with the new Pro 500 plan.