Verified65% confidenceFactExact time
The caching mechanism is technically commonly referred to as KV Cache or Prompt Caching
3
Sources
65%
Confidence
Long-term
Relevance
9/16/2026
First Seen
Sources
Related Entities
Related Claims
VerifiedKV 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76% similarUnverifiedThe prefill phase processes the complete input context, computes attention for all input tokens, and generates the KV cache; it is a compute-intensive operation whose time consumption is strongly correlated with input length.73% similarUnverifiedBoth OpenAI's Prompt Caching and Anthropic's Prompt Caching adopt a KV cache reuse mechanism.73% similarUnverifiedPrompt caching reuses already-computed KV cache on the server side and requires the context prefix of the previous request to be identical to the current one.72% similarUnverifiedPrompt Caching is an optimization across requests, users, and conversations: as long as the prompt prefixes of different requests are completely identical, the corresponding KV results can be shared globally.72% similar
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