Unverified50% confidenceSolutionExact time
The architectural constraint of prompt caching is: stable content (system instructions, context, examples, etc.) goes first and must be byte-identical each time, while variable content goes at the end.
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50%
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Long-term
Relevance
10/18/2026
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Related Claims
UnverifiedPlacing format constraints at both the beginning of the system message and the end of the user message can leverage the attention mechanism's greater sensitivity to sequence boundaries (primacy and recency) to improve format compliance.75% similarUnverifiedOn Anthropic, the cache hierarchy is: tools first, then system, then messages.73% similarUnverifiedBuilding a standardized prompt template library (such as having a validated template each for text summarization, code review, translation polishing, etc.), where only the variable parts need to be replaced when used, saves time and ensures consistent output quality.70% similarUnverifiedLocking in cross-format style consistency currently remains one of the primary bottlenecks of generative tools, and is typically maintained through mechanisms such as reference image input, LoRA fine-tuning, or prompt templates.70% similarUnverifiedKun通过将稳定不变内容置于Prompt前缀、动态对话内容置于末尾来最大化缓存复用率70% similar
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