These words are used loosely, and companies define them differently. Names also change. So do not trust a label: sort the tool into three layers, then ask four questions.
Three layers, four questions
0 of 6 done
Tap a step when you have done it. Your ticks stay on this device.
Rule of thumb
Rule of thumb (general good practice): look under the label. The more it starts on its own, touches, and does alone, the more you should set limits and check.
Sources: official documentation and articles from three AI companies (listed in the video description). Definitions differ between companies and change over time, so check the current docs.