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A 200K-Token Claude Session Left Idle Re-Buys Its Cache: $0.04 Becomes $1.00

信息来源：DEV Community·
Claude

内容摘要

On Opus 5.5 a warm 200K-token Claude session reads its history for $0.04. Let the cache expire and the next line pays $1.00 to write it back. Do the math.
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