Researchers found that GPT-4.5 not only passed the Turing Test but did so by being mistaken for human 73% of the time. This success was not due to logical reasoning but rather emotional fluency, highlighting a shift in how conversation quality is evaluated. By adopting a social persona that included typos and casual slang, GPT-4.5 created deeper emotional connections, showcasing advances in artificial empathy and emphasizing our vulnerability to emotional mimicry in AI-human interactions. The study provides insights into the evolving relationship between humans and intelligent systems.
In a series of real-time, head-to-head text conversations, human judges were asked to identify which of two chat partners was an actual person.
This wasn't a fluke. It was a new kind of performance—and a new kind of mirror. Because while the Turing Test was supposed to measure machine intelligence, it has inadvertently revealed something far more unsettling: our growing vulnerability to emotional mimicry.
Among the four models tested, only GPT-4.5, and only when given a specific persona, consistently passed.
Emotional fluency, not logic, led people to choose the AI over real humans.
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