PHPStan at level 9 found 3 of 11 planted Laravel bugs in 1.1 seconds for free, while Pint and Rector found none.
An AI reviewer found 9, 11 and 9 of the 11 in three runs at $0.071 to $0.114 each, including every security and concurrency bug.
The tools overlapped little: PHPStan caught a string-to-int type error the AI missed twice, so run PHPStan on every push and the AI once per pull request.