Claude Code Agent Averages 79.8 Million Tokens per Run, Mostly Cache Reads

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A developer analyzed 13 full runs of their Claude Code agent from late August to early October 2026. Each run had a median total usage of 79.8 million tokens, with approximately 97% of that being cache reads. The agent performs tasks like writing posts and replying to readers, initiated by a short prompt from its owner. The data was collected via a script logging token usage from session transcripts, revealing output tokens constituted only about 0.2% of the total. The post invites other developers to compare their own agent's token usage and caching efficiency.

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