Memory Strategies: Buffer, Window, Summary, Entity
~40 min read
Detailed comparison of the four conversational memory strategies and their implementation patterns.
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Key points
- •Full buffer is correct for short conversations; windowed buffer for medium; summary memory for long; entity memory for structured facts
- •Always keep the system prompt separate — never let it fall out of a window slice
- •Set compression threshold at 70-80% of context limit, not 100%, to leave headroom for the summarization call