the bar has constantly been moved over the years as to what qualifies as AI. General AI and not machine learning. Lots of various machine learning that can do great at specific things, but nothing really as far as general AI.
Heck - we can't even define what intelligence even is, let alone what an artificial intelligence is.
there is a solid definition... but it's a very problematic one...
The Wechsler tests (WAIS & WISC) and their revisions, the Kaufman ABC, and a handful of foreign equivalents measure a specific mixture of skills. These include (across the range): short term distracted memory - numeric and multi word -- for periods of abut 1-3 minutes, sequencing images, coding/decoding, basic general knowledge, pattern completion, pattern replication, language comprehension, story restatement, speed and accuracy of counting objects amidst a wider array of objects, and ability to follow a line in a field of other lines.
The IQ score is derived from comparing results of the individual to an array of averages by age of norming... 100 is the mean score for your age, one standard deviation is 15 points; 60% of all people fall within 85 to 115.
Experimentally, it tends to stay similar for an individual across their adult lifespan, barring brain injury, trending downward. Brain injury almost universally results in permanent losses.
Oh,, and the problems? It presumes being inculturated into the test-normed culture, and having normal manipulative skills. (One friend with cerebral palsy scored lower than me, despite doing better in most general ed courses (and I had a 3.2 cum in Undergad, 3.8 in major). She couldn't do the physical manipulations for the pattern matching and pattern manipulation, nor the drawing of lines required... Essentially, penalized for semi-paralysis.
These tests use an inferential basis for it, defining it as "what we're testing for" - a mixture of cultural competence, pattern recognition/replication/modification, coding/decoding symbols, and comprehension of the culturally dominant language and its common sense elements.
It's also worth noting that, given a flashed set of numbers and switched to a set of blank markers, chimps can usually exceed 12 numbers' locations tapped in ascending order, while college undergrads tend to get only to about 7 for the same 1 second exposure. Banobos do better, but I can't recall how much better.
Traveller's working definition of Intelligence divorces the knowledge portion... that's Edu. It also avoids the cultural issues (we don't have Int when dealing with aliens), while the social aspects are conflated with social classes and castes and are adjusted for cultures.