Stanford and Google DeepMind researchers have created AI that may replicate human personalities with uncanny accuracy after only a two-hour dialog.
By interviewing 1,052 folks from numerous backgrounds, they constructed what they name “simulation brokers” – digital copies that have been spookily efficient at predicting their human counterparts’ beliefs, attitudes, and behaviors.
To create the digital copies, the crew makes use of information from an “AI interviewer” designed to have interaction individuals in pure dialog.
The AI interviewer asks questions and generates personalised follow-up questions – a mean of 82 per session – exploring every thing from childhood recollections to political beliefs.
By these two-hour discussions, every participant generated detailed transcripts averaging 6,500 phrases.

For instance, when a participant mentions their childhood hometown, the AI would possibly probe deeper, asking about particular recollections or experiences. By simulating a pure circulate of dialog, the system captures nuanced private data that customary surveys are likely to skim over.
Behind the scenes, the examine paperwork what the researchers name “professional reflection” – prompting massive language fashions (LLMs) to investigate every dialog from 4 distinct skilled viewpoints:
- As a psychologist, it identifies particular character traits and emotional patterns – as an illustration, noting how somebody values independence primarily based on their descriptions of household relationships.
- By a behavioral economist’s lens, it extracts insights about monetary decision-making and danger tolerance, like how they strategy financial savings or profession selections.
- The political scientist perspective maps ideological leanings and coverage preferences throughout varied points.
- A demographic evaluation captures socioeconomic elements and life circumstances.
The researchers concluded that this interview-based method outperformed comparable strategies – resembling mining social media information – by a considerable margin.

Testing the digital copies
So how good have been the AI copies? The researchers put them by a battery of checks to seek out out.
First, they used the Common Social Survey – a measure of social attitudes that asks questions on every thing from political beliefs to non secular beliefs. Right here, the AI copies matched their human counterparts’ responses 85% of the time.
On the Huge 5 character take a look at, which measures traits like openness and conscientiousness by 44 totally different questions, the AI predictions aligned with human responses about 80% of the time. The system was excellent at capturing traits like extraversion and neuroticism.
Financial sport testing revealed fascinating limitations, nevertheless. Within the “Dictator Recreation,” the place individuals resolve easy methods to cut up cash with others, the AI struggled to completely predict human generosity.
Within the “Belief Recreation,” which checks willingness to cooperate with others for mutual profit, the digital copies solely matched human selections about two-thirds of the time.
This implies that whereas AI can grasp our said values, it nonetheless can’t totally seize the nuances of human social decision-making (but, in fact).
Actual-world experiments
Not stopping there, the researchers additionally topic the copies to 5 basic social psychology experiments.
In a single experiment testing how perceived intent impacts blame, each people and their AI copies confirmed related patterns of assigning extra blame when dangerous actions appeared intentional.
One other experiment examined how equity influences emotional responses, with AI copies precisely predicting human reactions to honest versus unfair therapy.
The AI replicas efficiently reproduced human conduct in 4 out of 5 experiments, suggesting they will mannequin not simply particular person topical responses however broad, complicated behavioral patterns.
Simple AI clones: What are the implications?
AI techniques that ‘clone’ human views and behaviors are huge enterprise, with Meta just lately saying plans to fill Fb and Instagram with AI profiles that may create content material and have interaction with customers.
TikTok has additionally jumped into the fray with its new “Symphony” suite of AI-powered inventive instruments, which incorporates digital avatars that can be utilized by manufacturers and creators to supply localized content material at scale.
With Symphony Digital Avatars, TikTok permits eligible creators to construct avatars that signify actual folks, full with a variety of gestures, expressions, ages, nationalities and languages.
Stanford and DeepMind’s analysis suggests such digital replicas will develop into way more subtle – and simpler to construct and deploy at scale.
“In case you can have a bunch of small ‘yous’ operating round and really making the selections that you’d have made — that, I feel, is in the end the longer term,” lead researcher Joon Sung Park, a Stanford PhD pupil in laptop science, describes to MIT.
Park describes that there are upsides to such know-how, as constructing correct clones might help scientific analysis.
As an alternative of operating costly or ethically questionable experiments on actual folks, researchers might take a look at how populations would possibly reply to sure inputs. For instance, it might assist predict reactions to public well being messages or examine how communities adapt to main societal shifts.
Finally, although, the identical options that make these AI replicas priceless for analysis additionally make them highly effective instruments for deception.
As digital copies develop into extra convincing, distinguishing genuine human interplay from AI has develop into robust, as we’ve noticed from an onslaught of deep fakes.
What if such know-how was used to clone somebody towards their will? What are the implications of making digital copies which are intently modeled on actual folks?
The Stanford and DeepMind analysis crew acknowledges these dangers. Their framework requires clear consent from individuals and permits them to withdraw their information, treating character replication with the identical privateness considerations as delicate medical data.
That no less than offers some theoretical safety towards extra malicious types of misuse. However, in any case, we’re pushing deeper into the uncharted territories of human-machine interplay, and the long-term implications stay largely unknown.