AINewsnow

Decide which prompt prefix to cache vs re-run to reduce LLM latency

Implementation summary This post gives a practical decision flow for splitting an LLM prompt into a reusable prefix and a volatile suffix so you can use provider-side prompt caching safely and effectively. The included helper finds the longest contiguous leading stable prefix, produces a conservati…

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  1. 2026-11-01 23:55 · DEV Community — AI
    Decide which prompt prefix to cache vs re-run to reduce LLM latency

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