Unverified50% confidenceFactExact time
Only K and V are cached rather than Q, because the Query only represents the current query intent and is discarded after use, while Key and Value represent the semantic information of historical tokens and are repeatedly accessed by subsequent tokens.
1
Sources
50%
Confidence
Long-term
Relevance
9/17/2026
First Seen
Sources
Related Entities
Related Claims
Unverified语义缓存通过计算新查询与历史查询的向量相似度，当超过阈值时直接返回缓存答案，GPTCache等工具实现了该机制64% similarVerifiedThe semantic caching mechanism vectorizes and stores historical responses to similar requests, and when semantic similarity exceeds a threshold, it directly returns cached results to reduce upstream API call frequency and costs62% similarUnverifiedCache-Aside（旁路缓存）模式天然存在缓存与数据库的一致性窗口，并可能导致缓存击穿和缓存雪崩问题59% similarUnverified缓存命中的前提是提示词内容保持稳定，若系统提示词中包含动态插入的时间戳、会话ID或随机内容则会造成缓存失效59% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/930567API
curl https://kongchang.com/api/v1/knowledge/claims/930567MCP
get_claim(id=930567)