Cursor has fully integrated the GPT-5 series, including the flagship GPT-5.4 and the coding-optimized GPT-5.3 Codex. These models are available natively in the editor, though some users on legacy plans may need to use "Max Mode" to access them.
- Open the Cursor application on your computer.
- Click File on the toolbar and locate Preferences.
- Choose Cursor Settings from the dropdown menu.
- Click on the Models tab in the sidebar of the settings window.
- Scroll down to the Model Toggle list and ensure GPT-5.4 or GPT-5.3 Codex is switched On.
- Close the settings tab to save your changes.
- To use the model for your current task, open the Chat (Ctrl + L) or Composer (Ctrl + I).
- Select GPT-5 from the model dropdown at the bottom.
