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Claude Code Token Usage: 97% of 44.6B Tokens Were Cache Re-Reads

Claude wrote 122 million tokens for me last month. To write them, it read 43 billion. I got that ratio by parsing 30 days of my Claude Code token usage straight from the JSONL session logs on my laptop: 192,178 API requests, 889 main sessions and 5,696 subagents. I wanted to know which habit was ex…

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  1. 2026-11-04 12:35 · DEV Community — AI
    Claude Code Token Usage: 97% of 44.6B Tokens Were Cache Re-Reads

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