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ccusage in 2026: what the Cost column actually measures
The Cost column in ccusage is a counterfactual: what your tokens would have cost at pay-per-use list prices, computed locally. On a Claude subscription it is not your bill, and ccusage's own introduction and Anthropic's own docs both say so. A field log on what the number measures, where the caveat is written, and where it is missing.
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