ARC-AGI has thought a fair deal about this and has a good definition here: https://arcprize.org/arc-agi#defining-agi:~:text=AGI%20is%20a%20system%20that%20can%2

ARC-AGI has thought a fair deal about this and has a good definition here: https://arcprize.org/arc-agi#defining-agi:~:text=AGI%20is%20a%20system%20that%20can%20match%20the%20learning%20efficiency%20of%20humans https://arcprize.org/arc-agi#defining-agi:~:text=AGI%20is%20.... "The intelligence of a system is a measure of its skill-acquisition efficiency over a scope of tasks, with respect to priors, experience, and generalization difficulty."