Tokens are the basic unit of how AI actually parses language—roughly one word or word fragment—and understanding how they work reveals why some short prompts feel expensive while others feel cheap. Becoming token-aware means you can write more efficiently, predict costs, and troubleshoot why certain requests seem to consume more resources than expected.
Tokens are the small chunks of text, roughly three to four characters each, that AI models use to read, process, and generate language rather than working word by word.
Understanding tokens helps you write more efficient prompts, manage costs on paid AI tools, and troubleshoot why very long inputs sometimes produce degraded or cut-off responses.
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