Artificial intelligence is reshaping how sex dolls engage with users by enabling more natural, responsive conversations and nuanced personality profiles. Rather than relying on static features, modern AI can learn user preferences, humor, and conversational cadence to create a more personalized experience. This evolution helps users feel understood, reducing repetitive prompts and increasing comfort during interactions. Importantly, personality settings can range from playful to serious, with adjustable tones, vocabularies, and boundaries to align with individual boundaries and ethics. The result is a companion that can adapt over time, offering continuity across sessions and a sense of evolving companionship. Yet with greater intelligence comes the need for thoughtful design: safeguarding user privacy, ensuring consent-based interactions, and preventing over-reliance. Designers and researchers emphasize transparent AI behavior—clear indicators when a doll is simulating empathy versus offering a programmed response. For users, the key is mindful engagement: using tailored personalities to explore needs while maintaining healthy expectations about artificial companionship. As AI continues to mature, the line between tool and companion may blur further, inviting ongoing dialogue about autonomy, consent, and the appropriate role of technology in intimate life.