Unverified50% confidenceSolutionExact time
A mixed strategy: using the 12-hour cache to store shared instructions and the 30-minute cache to handle newer conversation content can balance reuse savings with avoiding long-cache fees for frequently changing parts.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/20/2026
First Seen
Valid until: 1/18/2027
Sources
Related Entities
Related Claims
UnverifiedPrompt caching requires the request prefix to match byte for byte, and caches usually have a time to live (such as 5 minutes to 1 hour), after which they must be written again.69% similarUnverifiedThere are multiple strategies for updating long-term memory: Append preserves the complete history but storage costs grow linearly; Overwrite saves space but loses the trajectory of changes; Incremental Summary balances cost and information fidelity.69% similarUnverifiedFor highly repetitive subtasks, caching intermediate results can avoid repeated model calls, and in community practice, reasonable use of caching can significantly reduce the overall time consumption of some tasks.69% similar
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