OpenAI opens Ultrafast for GPT-6 Astra and introduces Pro 500
Ultrafast is available today for GPT-6 Astra in Codex, ChatGPT Work, and the API, with GPT-6.1 Sol support coming soon. Access in Codex and ChatGPT Work comes through the new Pro 500 plan, which has OpenAI’s highest usage limits at 25 times Plus.