Where control moves when you buy
A procured system passes a due-diligence gate; then boundary evals and the controllable perimeter shrink, while inventory and collected supplier evidence grow.
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A procured system (SaaS with an embedded LLM, an API-only foundation model, or an agent inside a vendor's product) first passes a due-diligence gate, the Vendor / Model Due-Diligence Gate pattern. Layer 02 Inventory & Transparency grows: the vendor's system still needs a registry entry, an owner and a scope. Layer 03 Evals & Red Teaming as Evidence shrinks to boundary evals of the vendor's system as a black box and reliance on the vendor's own evidence. Layer 04 Runtime Controls & Observability shrinks to the perimeter you control: the tool scopes you grant, the identity you issue the vendor's agent and the traffic you can observe. Layer 05 Assurance & Continuous Compliance grows: supplier documentation, model card and any AIBOM become evidence you collect rather than produce. The less of the model you own, the more of your control budget moves from testing it to bounding it and evidencing the supplier.
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“Where control moves when you buy” by Jorge García Aibar, aigovernanceengineer.com (https://aigovernanceengineer.com/figures/procured-ai-control), v0.5.0. Licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
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<a href="https://aigovernanceengineer.com/figures/procured-ai-control">Where control moves when you buy</a> by Jorge García Aibar,
aigovernanceengineer.com, v0.5.0.
Licensed under <a href="https://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.
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*[Where control moves when you buy](https://aigovernanceengineer.com/figures/procured-ai-control) by Jorge García Aibar, aigovernanceengineer.com, v0.5.0. Licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).*