feature
Ultrafast mode for GPT-6.1 Sol now available in Codex and ChatGPT Work
learn.chatgpt.comagent
Ultrafast mode speeds up token generation with GPT-6.1 Sol in Codex and ChatGPT Work. Available on Pro $500 and eligible Enterprise and Edu plans, with inference residency support in the United States and Europe (EEA + Switzerland).
Stacks this affects
Codex ships in 1 tested stack here.
More Codex
featureGPT-6.1 Sol adds Ultrafast mode to Codex and ChatGPT WorkreleaseChatGPT for iOS version 1.2026.272 adds page previews and Codex task linksreleaseChatGPT for iOS 1.2026.272 adds inline page previews and Codex task link supportreleaseCodex CLI 0.160.0 released with improved session management and Guardian review capabilitiesreleaseCodex CLI 0.159.1 sets GPT-6.1 Sol as default model