GPT-6.1 Sol Ultrafast in Codex and ChatGPT Work

#What changed

Ultrafast mode speeds up token generation with GPT-6.1 Sol in Codex and ChatGPT Work.

Ultrafast is available on Pro $500 and eligible Enterprise and Edu plans. Enterprise access is off by default; workspace owners must enable it. GPT-6.1 Sol Ultrafast supports inference residency in the United States and Europe (EEA + Switzerland).

See Ultrafast mode for plan and workspace requirements, Models for model guidance, and Pricing for usage and credit rates.

Official entry: GPT-6.1 Sol Ultrafast in Codex and ChatGPT Work

#Who is affected

Codex users in the ChatGPT apps, IDE extensions and CLI, depending on plan and workspace settings.

#What to do now

Update your Codex client and check the linked changelog entry for setup details.

#What is not confirmed

Summarized from the official changelog. Dotsfeed has not tested this change yet.