Stop Comparing Model Prices. Measure Cost per Completed Work.

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Model pricing is easy to compare. Completed work is harder. Fireworks reports a customer comparison in which total token use moved from 49.3K to 29.9K, a 39% reduction, while the task score moved from 0.751 to 0.753. That is useful evidence for token efficiency. It is not enough evidence for choosing a model in a real tool-using system.

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