Understanding KV, Prefix, Prompt, and Semantic Caching in LLMs
blaizedsouza · x · 2026-08-29
This article clearly explains the four key caching layers in LLM applications: KV, Prefix, Prompt, and Semantic Caching. It starts from first principles to explore where input tokens are being recomputed and how to address it. The content covers trade-offs, use cases, and how to effectively leverage these caching strategies to reduce inference costs and latency.
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