Unverified50% confidenceSolutionExact time
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
1
Sources
50%
Confidence
Long-term
Relevance
7/21/2026
First Seen
Sources
Related Claims
UnverifiedPrompt 缓存依赖于前缀的精确匹配，一旦技能定义的顺序或内容发生微小变化，缓存即失效73% similarUnverifiedThe erroneous suspensions used a soft-ban mechanism, leaving users' conversation histories and custom settings data intact.71% similarUnverified语义缓存的缓存失效比传统缓存更复杂，因为语义匹配边界模糊，旧答案可能在某阈值下仍被命中71% similarUnverifiedPrompt缓存必须从前缀开始严格匹配，一旦中间某个token变化，其后所有token的注意力计算都会改变，已缓存的KV对随之失效69% 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 costs69% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/575729API
curl https://kongchang.com/api/v1/knowledge/claims/575729MCP
get_claim(id=575729)