Change the default GPT model version of ChatGPT

Not all GPT models are created equal — different versions have different strengths, speeds, and capabilities. This tool addresses the need to configure or customize the default GPT model version used by ChatGPT, giving you more control over which underlying AI model powers your conversations.

Whether you prefer a faster, lighter model for quick tasks or a more powerful version for complex reasoning, this functionality puts the choice in your hands — making your ChatGPT experience truly tailored to how you work.