The article defines tokens (now officially called “词元”), explains why large language models require numeric input, and details three main tokenization strategies—word‑based, character‑based, and subword—along with the sub‑methods BPE, WordPiece, and Unigram, highlighting their advantages and drawbacks.
This episode explains that a token is the smallest text chunk an LLM processes—ranging from characters to subwords—covers why subword tokenization avoids vocabulary explosion, compares token counts across languages, describes the computational cost of sequential generation, and introduces visual tokens for multimodal models.
This article explains the fundamentals, workflows, examples, and trade‑offs of three major subword tokenization algorithms—Byte Pair Encoding, WordPiece, and SentencePiece—helping practitioners choose the right method for their large language model pipelines.
The article explains that a token is the unit processed by large language models, describes three common tokenizer methods—word‑level, character‑level, and sub‑word level—with English and Chinese examples, discusses their advantages and limitations, and shows how OpenAI’s tokenizer varies across model versions.
