When the Unit of Cost Is Not a Unit
The 45x billing gap documented across four models running an identical prompt is not an outlier — it is a structural feature of a market where every vendor ships its own tokenizer. Non-English text compounds the problem: Hindi and Japanese can cost two to four times more on English-heavy vocabularies . Enterprises that built AI cost projections on 'price per million tokens' have been doing arithmetic in different currencies without knowing it. The AI cost problem that's already past the budget line is not a future risk; finance teams at scale are discovering it now.