Unverified50% confidenceFactExact time
Due to the autoregressive nature, each decode step requires accessing the KV Cache of all previous tokens.
1
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50%
Confidence
Long-term
Relevance
9/10/2026
First Seen
Sources
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Related Claims
UnverifiedPrompt Cache本质上是大模型推理架构中KV Cache机制的服务端延伸，缓存Transformer中每个token生成的Key和Value矩阵67% similarUnverifiedThe core principle of prompt caching is cross-request reuse of the KV Cache, where already-computed KV states can be cached and reused when multiple requests share the same prefix.64% similarUnverifiedAnthropic's Prompt Caching leverages the KV Cache mechanism in the Transformer architecture to reduce latency and cost by caching the key-value states corresponding to shared prompt prefixes.63% similarUnverifiedvLLM的前缀缓存（Prefix Caching）对KV Cache块计算哈希值，当新请求输入前缀与已缓存请求重叠时直接复用物理缓存块，跳过该部分prefill计算60% similarVerifiedKV Cache通过将已计算的键值对持久化存储，使相同Prompt前缀的后续请求可直接复用，跳过重复的矩阵运算60% similar
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