Downloaded images tend to have useless names:

$ ls
1672714705640839.png 1689964585834142.png 2.jpg

ollama with the moondream vision model is small enough to run quickly on a laptop. This asks it for a title for every .jpg in the current directory and turns each title into a plausible filename:

find . -name "*.jpg" |
xargs -I{} ollama run moondream "Title for this: {}" |
tr ' ' '_' | sed 's/$/\.jpg/'

Some of the (slightly truncated) results: A_green_dragon_with_wings_and_a_tail.jpg , A_painting_of_a_serene_landscape.jpg , urns_of_stone_red_car_in_foreground.jpg .