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Field Notes: Where a real production hit ratio sits against the prompt caching break-even point

The prompt caching break-even formula already exists in a few places online, worked against Anthropic's first-party API pricing: one example , another . Neither of those checks the formula against a real measured production hit ratio rather than an illustrative one. This post does that: the real 99…

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  1. 2026-11-10 12:29 · DEV Community — AI
    Field Notes: Where a real production hit ratio sits against the prompt caching break-even point

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