March 17, 2026 — Updates to the model picker in ChatGPT
We’ve simplified the model picker to make it easier to choose the right level of reasoning.Users on Plus, Pro, Business, Enterprise, and Edu accounts will see a set of model options depending on their plan, including:
Instant– fast responses for everyday questionsThinking– deeper reasoning for more complex tasksPro– the most advanced reasoning models
The Auto functionality can be accessed by clickingConfigurein the model picker menu and choosing "Auto-switch to Thinking.” This setting will automatically be on if your last chat was set to Auto.
Configure more advanced settings
If you want more control, clickConfigureto:
Turnautomatic switchingbetween Instant and Thinking on or offAccesslegacy modelsSetthinking effortwhen Thinking or Pro is selected
We’ve also simplified theretry menu, making it easier to regenerate responses with Thinking or Pro models by clicking on the three dots underneath the response.