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Decision Surface

Comparisons for AI builders making real architecture choices

Structured comparison pages for framework, infrastructure, and operating-model decisions. These are built to help you choose, not to pad the archive.

Comparison

pgvector vs Qdrant for Agent Memory (2026)

A practical comparison for teams deciding whether agent memory should stay inside Postgres or move into a dedicated vector database — with real latency benchmarks and hybrid search tradeoffs.

Updated 2026-03-13Open Guide