vector-databases

On one June Tuesday, money poured into startups all selling AI-agent 'memory,' a word that covers at least four different technical products, while the frontier labs absorb the easiest of them as a free feature.

Every agent-memory tutorial opens with a vector DB, but that is a product opinion rather than a default; mature agent runtimes start elsewhere, and Qdrant or sqlite-vec earns its keep only past roughly 50K episodic items.