Unverified50% confidenceFactExact time
Anthropic要求至少1024个token的前缀才会触发缓存，OpenAI的缓存阈值为128个token
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
8/12/2026
First Seen
Valid until: 11/10/2026
Sources
Related Claims
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https://kongchang.com/claim/736878API
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