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    <guid>https://thepromptera.com/blog/pt/2026-08-03-claude-api-prompt-caching-cost-optimization</guid>
    <title>Prompt Caching na API do Claude: corte custos com contextos repetidos</title>
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    <description>Prompt caching na API do Claude reduz custos de input em até 90%, mas a sobretaxa de 25% na escrita pune quem está iterando. Veja quando a conta fecha no seu favor.</description>
    <pubDate>Mon, 03 Aug 2026 12:00:00 GMT</pubDate>
    <author>joaovictor.cidade@gmail.com (João Schuller)</author>
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