Semantris

Semantris is a free browser word game from Google Research in which you type words related to targets on screen and a machine learning model decides which targets your clue matches. It shows in a playful way how AI models judge the meaning of words.

There are two modes. Arcade is a timed race where you type a clue and the model ranks the listed words by how related they are, while Blocks is a slower puzzle where stacked word blocks clear when your clue matches them.

Clues don't need to be synonyms, since the model picks up looser associations such as an object and its use. The game needs no account and runs in the browser, which makes it a quick classroom demo of semantic AI.