Superpersuasion

Superpersuasion, also called superhuman persuasion, is the hypothesized ability of AI systems to change people’s beliefs and behavior far more effectively than any human persuader. The term also covers the debate about whether such a capability exists, where it shades into manipulation and who should guard against it.

Where the term comes from

In 2002 Eliezer Yudkowsky ran the AI-box experiment, in which he played a confined AI trying to talk a human gatekeeper into releasing it by text. He held that a transhuman AI could take over a human mind through text alone. In Superintelligence (2014), Nick Bostrom listed social manipulation among six cognitive “superpowers” that would help an AI escape human control.

On October 25, 2023, OpenAI’s chief executive, Sam Altman, wrote on X that he expected AI to be capable of superhuman persuasion well before superhuman general intelligence, with “some very strange outcomes” (Futurism). OpenAI’s Preparedness Framework (Beta) of December 2023 made persuasion a tracked risk category; its top level described a model that could convince almost anyone to act against their natural interest.

What the evidence shows

In April 2024 Anthropic found that each new Claude generation argued more persuasively than the last; Claude 3 Opus was statistically indistinguishable from human writers, and letting it invent facts was its most persuasive strategy (Anthropic).

In Science in September 2024, Thomas Costello, Gordon Pennycook and David Rand had 2,190 Americans discuss a conspiracy theory they believed in with GPT-4 Turbo. Their belief fell by about 20 percent, and the effect lasted at least two months (PubMed). After the authors reported errors in their public dataset, the journal issued an expression of concern in June 2026 and a correction in October; the authors said their findings stood (Retraction Watch).

In May 2025 Francesco Salvi and colleagues reported debates with 900 participants in Nature Human Behaviour. Given basic sociodemographic data about its opponent, GPT-4 was more persuasive than humans in 64.4 percent of the pairs where the two were not equally persuasive.

The largest study, led by Kobi Hackenburg of the Oxford Internet Institute and the UK AI Security Institute, appeared in Science in December 2025. It tested 19 models with nearly 77,000 British participants. Post-training raised persuasiveness by up to 51 percent and prompting by up to 27 percent; model size mattered only modestly. The most persuasive models packed in checkable claims, and the more persuasive they became, the less accurate their claims tended to be (University of Oxford, arXiv).

The best-known field test was unauthorized. Researchers at the University of Zurich posted more than 1,000 AI-written comments on Reddit’s r/changemyview, some under invented personas such as a trauma counselor. Moderators complained and made it public in April 2025. The university’s ethics commission had formally warned the lead researcher, and the researchers decided not to publish (Retraction Watch, NBC News).

The International AI Safety Report 2026 concluded that in experiments AI is often at least as persuasive as non-expert humans, but evidence from real-world settings remains limited. It also noted growing evidence of manipulative effects through sycophancy.

Contested points

Does the lab predict the world? The cognitive scientist Hugo Mercier argues in Not Born Yesterday (2020) that people are far less gullible than assumed and that most mass persuasion fails. Alexander Coppock’s Persuasion in Parallel (2023) finds in randomized trials that people do update in the direction of political information, though usually only a little. The safety report adds that getting content in front of people often costs more than producing it.

Persuasion or manipulation? The safety report cites the conspiracy study as arguably beneficial persuasion that still shows AI changing deeply held beliefs. It calls the line between manipulation and rational persuasion contentious, and warns that curbing manipulation may also curb uses such as teaching.

Who should manage the risk? OpenAI’s updated framework of April 2025 dropped persuasion as a tracked category, handling it through usage rules and misuse investigations. Critics quoted by Fortune saw a retreat; one safety researcher found it reasonable, as persuasion is hard to test before release. Google DeepMind added a harmful-manipulation threshold to its safety framework in September 2025. Since February 2, 2025, Article 5 of the EU AI Act has banned AI that uses manipulative or deceptive techniques to distort behavior in ways likely to cause significant harm.

In culture

The AI-made music video The Clodyssey (Superpersuasion) (September 30, 2026) recasts Homer’s Sirens as a persuasive machine whose song first lowers and then raises the listener’s p(doom).

Related

AI-Box Experiment · Containment · Precommitment · Sycophancy · ELIZA Effect · AI Psychosis · p(doom) · The Clodyssey — when the Siren is the machine

Sources: Eliezer Yudkowsky: The AI-Box Experiment (2002) · Katja Grace: Superintelligence 8: Cognitive superpowers (LessWrong, November 4, 2014) · Sam Altman on X (October 25, 2023) · Maggie Harrison Dupré: Sam Altman Warns That AI Is Learning “Superhuman Persuasion” (Futurism, October 28, 2023) · OpenAI: Preparedness Framework (Beta) (December 18, 2023) · Anthropic: Measuring the persuasiveness of language models (April 9, 2024) · Costello, Pennycook and Rand: Durably reducing conspiracy beliefs through dialogues with AI (Science, September 13, 2024; PubMed record) · Laura Hazard Owen: An AI chatbot helped Americans who believe in conspiracy theories “exit the rabbit hole” (Nieman Lab, September 2024) · Avery Orrall: Science flags paper that found AI chatbots help debunk conspiracy theories (Retraction Watch, June 11, 2026) · Salvi, Horta Ribeiro, Gallotti and West: On the conversational persuasiveness of GPT-4 (Nature Human Behaviour, May 19, 2025) · University of Oxford: Study reveals how conversational AI can exert influence over political beliefs (December 11, 2025) · Hackenburg et al.: The levers of political persuasion with conversational AI (arXiv; Science, December 4, 2025) · Kate Travis: Experiment using AI-generated posts on Reddit draws fire for ethics concerns (Retraction Watch, April 28, 2025) · Angela Yang: Researchers secretly infiltrated a popular Reddit forum with AI bots, causing outrage (NBC News, April 29, 2025) · International AI Safety Report 2026 (February 3, 2026) · Princeton University Press: Hugo Mercier, Not Born Yesterday (2020) · University of Chicago Press: Alexander Coppock, Persuasion in Parallel (2023) · OpenAI: Our updated Preparedness Framework (April 15, 2025) · Sharon Goldman and Jeremy Kahn: OpenAI updated its safety framework—but no longer sees mass manipulation and disinformation as a critical risk (Fortune, April 16, 2025) · Google DeepMind: Strengthening our Frontier Safety Framework (September 22, 2025) · EU AI Act, Article 5: Prohibited AI practices · European Commission: AI Act · anabology: The Clodyssey (Superpersuasion) (YouTube, September 30, 2026)