P · Prerequisite — the vectors chapter · 6/38
Bytes become ids
BPE is compression. English vs Go vs YAML.
playBPE · chars start as tokens · merge the hottest pair · compression is not meaningvocab — · next — · bytes/tok —
English vs Go vs YAML. Bytes per token is the fair meter.
The model never sees characters. Bad compression = more KV = more money.