Unverified50% confidenceFactExact time
Mainstream model vendors allow the prefix portion to be cached, with cache-hit tokens priced at a substantial discount, but the cache has a lifetime and a minimum length requirement, and a hit only occurs when the prefix matches exactly.
1
Sources
50%
Confidence
Long-term
Relevance
10/23/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe practical value of a persistence solution depends heavily on hit rate; if request prefixes are highly dispersed and cache reuse rates are low, the overhead introduced by writing to disk may not be worthwhile.72% similarUnverifiedPrompt Caching在提示词前缀完全相同且超过约1024 token阈值时命中，缓存token通常按原价的25%甚至更低计费72% similarUnverifiedIt is recommended to set a shorter expiration time for impersonation tokens and to ensure the administrator's original token is always securely retained on the client side.71% similarUnverifiedMainstream model providers (including Anthropic, DeepSeek, and others) offer a prompt caching mechanism for repeated prompt prefixes, charging a lower token price for cache hits (typically 10%–50% of the original price)70% similarUnverifiedCache hit discounts target repeated system prompts or context prefixes: if this content has already been cached, the provider does not need to recompute it and can heavily discount the cost of the hit portion, commonly to 10% to 25% of the original price.69% similar
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