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Prompt Caching Strategies to Cut LLM Costs by 70%

This story is from 2026-09-16. It is preserved in the archive; the latest stories are on the live feed.

LLM API costs add up fast when you're running a production application. If your system prompt is 2,000 tokens and you're processing 10,000 requests a day, you're paying for those same tokens 10,000 times. Prompt caching lets you pay once and reuse — and the savings can be dramatic. What Prompt Cach…

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  1. 2026-09-16 10:01 · DEV Community — AI
    Prompt Caching Strategies to Cut LLM Costs by 70%

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