Unverified50% confidenceFactExact time
Anthropic 的提示词缓存机制基于 KV Cache，可使匹配前缀的输入 token 费用降低约 90%
1
Sources
50%
Confidence
Long-term
Relevance
7/21/2026
First Seen
Sources
Related Claims
UnverifiedThe Prompt Caching mechanism can reuse the KV Cache of identical prefix contexts, typically reducing input token costs by 50%–90%.85% similarVerifiedAnthropic's Prompt Caching feature can reduce the input cost for repeated prefixes by approximately 90%.79% similarUnverifiedKV Cache技术可复用历史Token的注意力计算结果，部分厂商对命中缓存的Token给予标准价格10%-50%的折扣75% similarUnverifiedBy reusing prefix KV Cache, Prompt Caching can reduce latency by approximately 85% and costs by approximately 90%, using Anthropic's pricing as a reference.73% similarUnverifiedAnthropic's Claude API offers a Prompt Caching feature that reduces the input price by 90% on cache hits.73% similar
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