Agent - Something that makes decisions and actions that are not pre-programmed or predictable. Humans are definitely agents. LLM (eg Chat-GPT) are not quite there yet (they don't take action on their own).
Tool - Pretty much everything humanity has made to date. It does a preprogrammed thing or provides mechanical advantage. But it does not act on novel decisions it is making.
The terms come from an AI safety expert that Lex Friedman interviewed recently. [1]
Tesla FSD is almost an agent, though it asks a human to be ready to take over at any time.
Tool - Pretty much everything humanity has made to date. It does a preprogrammed thing or provides mechanical advantage. But it does not act on novel decisions it is making.
The terms come from an AI safety expert that Lex Friedman interviewed recently. [1]
Tesla FSD is almost an agent, though it asks a human to be ready to take over at any time.
[1] https://www.youtube.com/watch?v=NNr6gPelJ3E