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GGenerative AI
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    • Start here
    • Learning paths5 paths
    • Modules11 modules
    • Projects5 projects
    • Quizzes
    • Flashcards
    • Homework
    • Interview prep8 question banks
    • Cheat sheets11 sheets
    • Glossary239 terms
    • Code snippets
    • Ask the mentor
    • My notes
    • My progress
  1. Reference
  2. Token

Glossary

Token

The unit a model reads and writes: a word, part of a word, a symbol or a byte sequence. Cost, speed and context limits are counted in tokens, not words.

Where it is explained

  • Tokenization and embeddingsLLM foundations

See also

Terms explained in the same lessons.

  • Byte-pair encoding (BPE)
  • Embedding table
  • Tokenizer
  • Vocabulary
  • Embedding
Previous termTime to first token (TTFT)Next termTokenizer

All terms, A to Z

GGenerative AI

Learn generative AI from the first token to production systems.

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