This article evaluates four AI companions—Sesame, Hume AI, ChatGPT, and Google Gemini—based on their ability to provide human-like conversational experiences. Sesame outperformed the others with its engaging and natural dialogue, seamlessly incorporating casual phrases and maintaining a flow that mimics human interaction. It scored 9/10. Hume AI provided empathetic responses but often felt formulaic, earning a score of 7/10, while ChatGPT struggled with overly formal and academic tones, receiving a score of 6/10. Google Gemini was deemed the least effective, featuring awkward interruptions and a lack of coherent conversational flow, resulting in a score of 5/10. The comparison emphasized the importance of personality and interaction design, concluding that while none could replace a real friend, Sesame was the clear leader in creating an authentic and enjoyable chat experience.

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