Tom Costello

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Researcher with public evidence across AI research.

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research psychologist. beliefs, AI, computational social science. assistant prof at Carnegie Mellon

Articles & links

More from our group on this! (And using the same cool format as Matt): the effect comes mostly from facts and evidence¹ and holds for conspiracies only days old². LLMs can also talk people into conspiracies³. ¹ psyarxiv.com/h7n8u ² arxiv.org/abs/2608.06151 ³ arxiv.org/abs/2601…

Large language models can effectively convince people to believe conspiracies arxiv.org
AI Weekly's analysis →
  • Across four experiments with 3,996 American participants, LLMs instructed to argue for a conspiracy raised belief about as much as debunking LLMs lowered it.
  • Participants in the bunking condition rated the LLM as more informative and collaborative, and reported greater trust in AI, than those in the debunking condition.
  • A simple accuracy-only prompt sharply reduced bunking effectiveness, and one frontier model, GPT 5.2, almost entirely refused to promote conspiracies.
Read full analysis →
View on Bluesky · ♥ 17 ↻ 4 ↩ 1 · 2 from the directory shared this · 20d ago

Recent commentary

Tomorrow morning in DC I'm moderating a panel on feeds and politics with @cerenbudak.bsky.social, @filipecampante.bsky.social and @ylelkes.bsky.social. Misinformation, politicians writing for the algorithm, why depolarization is so hard, and what changes when people ask gen AI instead.

View on Bluesky · ♥ 3 ↻ 1 ↩ 1 · 26d ago

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