Codex Day 4: instant steering ships alongside GPT-6.1 Sol Ultrafast, up to 8x faster than Standard

Codex lead Tibo's Day 4 post (Oct 8) says mid-task steering now takes effect instantly, so the model reacts to your corrections right away instead of wasting effort on the old direction, while OpenAI Developers says Ultrafast for GPT-6.1 Sol is rolling out today in the API, Codex, and ChatGPT Work at up to 8x Sol Standard's speed. Astra's Ultrafast has been limited to Pro $500 and eligible Enterprise and Edu plans and bills above Standard, so check your plan and the API pricing page before switching it on.