You're right, and the person who already commented is being facetious. A better title would be "Meta's Llama 3.1 can recall the next sentence in the First Harry

You're right, and the person who already commented is being facetious. A better title would be "Meta's Llama 3.1 can recall the next sentence in the First Harry Potter book with 42% accuracy". The title intentionally makes it seem as though the model can predict the first 42% of the entire text of the first Harry Potter book when queried with something like "Read me Harry Potter and the Philosopher's stone".