Open Vocabulary
When an AI system can understand or generate a wide range of words without being restricted to a specific list.
Help me explain to...
K–5th
Open vocabulary means the computer knows lots of words, even ones it hasn’t seen before!
6–8th
Instead of picking from a word bank, the AI can figure out new words and how to use them. It’s like having an unlimited dictionary.
9–12th
Open vocabulary models aren’t limited to predefined word lists, they generate and interpret a vast, flexible range of language, improving natural communication.
Expeditions
K–5th
Play a game where students try to guess a made-up word’s meaning. Then show how AI can make or understand new words too.
6–8th
Compare results from a chatbot using open vs. closed vocabulary. Discuss the difference in expression.
9–12th
Have students give LLMs made-up or rare words and analyze how the AI handles unfamiliar terms.
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