OpenAI is rolling out new features for its ChatGPT platform that enhance customization options for users and developers. The updates include the introduction of a recommended model setting for custom GPTs, allowing creators to suggest a preferred model for users or leave the choice open. Additionally, users will now have the ability to select which model to use when interacting with custom GPTs. The Codex model will also receive an update enabling the configuration of the number of attempts per task. These changes aim to provide greater flexibility and control over the AI experience for both GPT builders and users.