Provider vs Deployer — Responsibilities — Foundations
Provider vs Deployer — Responsibilities
EU AI Act Compliance Foundations EU/UK aligned
+ On this page
Key takeaways
- Map each legal obligation to a named owner; don’t assume your vendor “covers it”.
- If you substantially modify a system, you may become the Provider under law.
Roles & definitions
- Provider: Places the AI system on the market or puts it into service under their name/brand.
- Deployer: Uses an AI system in their operations; configures purpose, settings, cohorts.
Provider obligations
- Technical file; risk management; data governance; accuracy/robustness/cybersecurity; human oversight design.
- CE/UKCA where applicable; post-market plan; incident reporting; instructions of use; transparency artefacts.
Deployer obligations
- Use per intended purpose; implement oversight; train operators; monitor PMM signals; keep records.
- Conduct DPIAs/LIAs where needed; communicate incidents; respect user transparency duties.
Shared responsibilities
- Security controls; logging; incident collaboration; fair & lawful data processing with evidence.
Contracts & flow-downs
- Evidence rights; audit rights; incident SLAs; supplier attestations; use constraints; termination/return-of-data.
Foundation model specifics
- Obtain model safety/security statements; document limitations; align guardrails and acceptable use.
Integrations & APIs
- Track each integration’s risk; restrict egress; rotate keys; verify provenance of responses where used in RAG.
Evidence & attestations
- Index of supplier docs; internal approvals; training logs; PMM dashboards; audit snapshots per release.
Change & substantial modification
- Triggers: model swap, data overhaul, new purpose, removal of safeguards; reassess role and obligations.
Liability & insurance
- Map risks to coverage (professional indemnity, cyber); define regress and caps; keep incident proof trails.
Common pitfalls
- Ambiguous roles; missing PMM; stale instructions of use; no evidence of operator training.
Responsibility checklist
- Roles assigned; contracts cover safety/evidence; oversight implemented; PMM and incidents integrated.
© Zen AI Governance UK Ltd • Regulatory Knowledge • v1 05 Nov 2025 • This page is general guidance, not legal advice.
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