AI Can Seem More Human Than Real Humans in a Classic Turing Test, Study Finds
A recent study from UC San Diego indicates that advanced AI can convincingly imitate human conversation in a Turing test. The research found that models like GPT-4.5 were identified as human 73% of the time, raising questions about the nature of humanlike behavior in AI. This challenges traditional views of the Turing test, suggesting it now measures social behavior rather than just intelligence.
- ▪UC San Diego researchers conducted a rigorous Turing test with advanced AI models.
- ▪GPT-4.5 was judged to be human 73% of the time, while LLaMa-3.1-405B was judged human 56% of the time.
- ▪The study suggests that AI's ability to mimic social behavior complicates our understanding of humanlike intelligence.
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| Original publisher | Ucsd |
| Canonical URL | https://today.ucsd.edu/story/ai-can-seem-more-human-than-real-humans-in-a-classic-turing-test-study-finds |
| Publication time | Thu, 21 May 2026 10:36:44 +0000 |
| Retrieval time | 2026-05-21T10:41:10.479Z |
| Last seen | 2026-05-21T10:41:10.479Z |
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AI Can Seem More Human Than Real Humans in a Classic Turing Test, Study Finds New UC San Diego research suggests the line between human and machine is increasingly drawn around social behavior as much as knowledge credit:peshkov/iStock Story by: Christine Clark - [email protected] Published Date May 19, 2026 Story by: Christine Clark - [email protected] Share This: Share this story on Linkedin Share this story on Facebook Share this story on Threads Share this story on Twitter Share this story via email Article Content Key Takeaways UC San Diego researchers ran a rigorous three-party Turing test and found that, with the right “persona” prompt, advanced AI can pass as human in live chats. GPT-4.5 was judged “human” 73% of the time; LLaMa-3.1-405B was 56%.
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