A Definition of AGI
Dan Hendrycks1, Dawn Song2, Christian Szegedy3, Honglak Lee4, Yarin Gal5
Sharon Li6, Andy Zou1,7,8, Lionel Levine9, Bo Han10, Jie Fu11, Ziwei Liu12, Jinwoo Shin13
Kimin Lee13, Mantas Mazeika1, Long Phan1, George Ingebretsen1, Adam Khoja1
Cihang Xie14, Olawale Salaudeen15, Matthias Hein16, Kevin Zhao17, Alex Pan2
David Duvenaud18,19, Bo Li20, Steve Omohundro21, Gabriel Alfour22, Max Tegmark15
Kevin McGrew23, Gary Marcus24, Jaan Tallinn25, Eric Schmidt15, Yoshua Bengio26,27
Dan Hendrycks1, Dawn Song2, Christian Szegedy3
Honglak Lee4, Yarin Gal5, Sharon Li6
Andy Zou1,7,8, Lionel Levine9, Bo Han10
Jie Fu11, Ziwei Liu12, Jinwoo Shin13
Kimin Lee13, Mantas Mazeika1, Long Phan1
George Ingebretsen1, Adam Khoja1, Cihang Xie14
Olawale Salaudeen15, Matthias Hein16, Kevin Zhao17
Alex Pan2, David Duvenaud18,19, Bo Li20
Steve Omohundro21, Gabriel Alfour22, Max Tegmark15
Kevin McGrew23, Gary Marcus24, Jaan Tallinn25
Eric Schmidt15, Yoshua Bengio26,27
1Center for AI Safety
2University of California, Berkeley
3Morph Labs
4University of Michigan
5University of Oxford
6University of Wisconsin–Madison
7Gray Swan AI
8Carnegie Mellon University
9Cornell University
10Hong Kong Baptist University
11HKUST
12Nanyang Technological University
13KAIST
14University of California, Santa Cruz
15Massachusetts Institute of Technology
16University of Tübingen
17University of Washington
18University of Toronto
19Vector Institute
20University of Chicago
21Beneficial AI Research
22Conjecture
23Institute for Applied Psychometrics
24New York University
25CSER
26Université de Montréal
27LawZero
Introduction
The lack of a concrete definition for Artificial General Intelligence (AGI) obscures the gap between today’s specialized AI and human-level cognition. This paper introduces a quantifiable framework to address this, defining AGI as matching the cognitive versatility and proficiency of a well-educated adult. To operationalize this, we ground our methodology in Cattell-Horn-Carroll theory, the most empirically validated model of human cognition.
The framework dissects general intelligence into ten core cognitive domains—including reasoning, memory, and perception—and adapts established human psychometric batteries to evaluate AI systems. Application of this framework reveals a highly “jagged” cognitive profile in contemporary models. While proficient in knowledge-intensive domains, current AI systems have critical deficits in foundational cognitive machinery, particularly long-term memory storage.
The resulting AGI scores (e.g., GPT-4 at 27%, GPT-5 at 58%) concretely quantify both rapid progress and the substantial gap remaining before AGI.

The capabilities of GPT-4 and GPT-5.
Definition
"AGI is an AI that can match or exceed the cognitive versatility and proficiency of a well-educated adult."
The framework comprises ten core cognitive components, derived from CHC broad abilities and weighted equally (10%) to prioritize breadth and cover major areas of cognition:
Acquired Knowledge
Perception
Central Executive
Output
Citation
@misc{hendrycks2025agidefinition, title={AGI Definition}, author={Dan Hendrycks and Dawn Song and Christian Szegedy and Honglak Lee and Yarin Gal and Sharon Li and Andy Zou and Lionel Levine and Bo Han and Jie Fu and Ziwei Liu and Jinwoo Shin and Kimin Lee and Mantas Mazeika and Long Phan and George Ingebretsen and Adam Khoja and Cihang Xie and Olawale Salaudeen and Matthias Hein and Kevin Zhao and Alex Pan and David Duvenaud and Bo Li and Steve Omohundro and Gabriel Alfour and Max Tegmark and Kevin McGrew and Gary Marcus and Jaan Tallinn and Eric Schmidt and Yoshua Bengio}, year={2025}, }