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We moved to a newer model with the same price per token, but our bill rose about 30%. What happened, and how should we have caught it?

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A puzzle with a precise answer. Price per token is only comparable if a token means the same thing, and across model generations it often does not.

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A puzzle with a precise answer. Price per token is only comparable if a token means the same thing, and across model generations it often does not.

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