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“Personhood credentials allow you to prove you are human without revealing anything else about your identity,” says Tobin South (Credits: MIT News; iStock).
CSAIL article

As artificial intelligence agents become more advanced, it could become increasingly difficult to distinguish between AI-powered users and real humans on the internet. In a new white paper, researchers from MIT, OpenAI, Microsoft, and other tech companies and academic institutions propose the use of personhood credentials, a verification technique that enables someone to prove they are a real human online, while preserving their privacy.

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alt="Language models may develop their own understanding of reality as a way to improve their generative abilities, indicating that the models may someday understand language at a deeper level than they do today (Credits: Alex Shipps/MIT CSAIL)."
CSAIL article

Ask a large language model (LLM) like GPT-4 to smell a rain-soaked campsite, and it’ll politely decline. Ask the same system to describe that scent to you, and it’ll wax poetic about “an air thick with anticipation" and “a scent that is both fresh and earthy," despite having neither prior experience with rain nor a nose to help it make such observations.