Public data is drying up; private training data is turning into a browsable catalog

SucceededMind · x · 2026-10-23

Quoting @DataChaz, the author notes that buying training data used to mean brokers, cold emails, NDAs before seeing anything, and weeks of quality checks—only to find the data didn't fit your training run. Now it works like a catalog: browse, inspect, sample, buy.

The deeper unlock, the author argues, isn't just UX. As public data becomes exhausted in many domains, private and enterprise data finally has a distribution channel—and being able to inspect quality and sample before committing changes the economics of training data.

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