Why it matters

Memory hierarchy scales cost. Hot data fast; cold data cheap.

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The architecture

Hot in-context.

Warm Redis.

Cold S3 or archive.

Memory hierarchyHotin-contextWarmRedis, fast DBColdS3 archiveMemGPT introduced tiered memory; cost-effective scale
Memory hierarchy.
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How it works end to end

MemGPT hierarchy.

Move by access.

Cost-effective.