Memory Server feature comparison Redis Agent Memory Server Google Vertex MemoryBank AWS AgentCore Memory Auto-generate memories Yes, with choice of LLM and support for scopes, topics Yes, uses Gemini Yes, uses Bedrock models- Claude, Llama etc. Advanced retrieval Yes, Combine similarity, with recency, freshness, metadata etc. Limited, Similarity Search only (reference) Limited, Similarity Search only (reference) Decay and Freshness Yes, Configuring “forgetting” rules based on age, recency, budget etc. at namespace/userid level. Limited, TTL only Limited, TTL only Working memory mgmt Yes, incl. automatic expiration, tiering to/from long-term memory, No. Requires separate “Session” store and triggering generation Yes, includes automatic short-term (session-scoped) and long-term memory Cloud choice Yes, Redis available on all 3 clouds and on-prem. Memory Server is Open source today (w/ service coming) No, GCP only No, AWS only