According to OpenAI (@OpenAI), ChatGPT users can now personalize specific conversational characteristics such as warmth, enthusiasm, and emoji use directly within the 'Personalization' settings. This enhancement enables businesses and developers to fine-tune AI interactions for targeted customer engagement and brand voice consistency. The new feature streamlines AI deployment in customer service, marketing, and content creation by allowing organizations to better align AI responses with their audience preferences and communication standards (source: OpenAI, Dec 19, 2025).