Tokenizer efficiency is a proxy for how well a model understands your language. The same content in Thai needs 2.8× more tokens than in English — less effective context window, worse reasoning, higher cost multiplier.
| # | tokenizer | chars/token | fertility | vs english | efficiency |
|---|---|---|---|---|---|
| detecting your language... | |||||
* mothertoken owns no pricing data. the rtc multiplier is yours to apply.
whatever you pay per token × multiplier = what your language actually costs.