I caught the AI making a mistake

Question AI's first answer Correct answer Status
How many letter “r”s are in “strawberry”? 2 3 ❌
How many letter “s”s are in “Mississippi”? 3 4 ❌
How many letters are in “accommodation”? 12 13 ❌
How many words are in the sentence “My cat sat on the mat, and my dog chased a ball in the garden”? 14 15 ❌
AI makes mistakes when counting letters because it works with tokens (chunks of words) and does not see individual characters one by one.