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AI Model Risk Management & MLOps Governance

Extending traditional model risk frameworks to cover generative AI: an expanded risk taxonomy, model inventory, validation, and the three-lines-of-defense model applied to AI.

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  1. 02

    Why This Matters Now

    • Generative AI and LLM-based systems are moving into production faster than governance frameworks can adapt
    • Existing model risk programs were built for statistical, credit, and pricing models with stable, well-defined behavior
    • Business units are adopting AI copilots, chatbots, and decision-support tools outside formal model inventories
    • Regulators and internal audit are beginning to ask questions existing frameworks were not designed to answer
    • This briefing outlines the gaps and a practical path to close them
  2. 03

    Where Traditional Model Risk Frameworks Fall Short

    • Traditional frameworks (e.g., SR 11-7-style guidance) assume a defined input-output function with measurable, stable error rates
    • Generative models produce open-ended, non-deterministic outputs that resist conventional back-testing
    • Validation methods built for regression and classification models do not test for hallucination, tone, or reasoning failures
    • Third-party foundation models are often black boxes: no access to training data, weights, or full documentation
    • Model boundaries blur when prompts, retrieval systems, and fine-tuning layers change behavior post-deployment
  3. 04

    Expanded Risk Taxonomy for AI Systems

    • Hallucination: confident, fabricated, or unsupported outputs presented as fact
    • Prompt injection: malicious or unintended instructions embedded in inputs, documents, or retrieved content
    • Data leakage: sensitive or proprietary information exposed through outputs, logs, or third-party model providers
    • Model and data drift: performance degradation as usage patterns, prompts, or underlying model versions change
    • Third-party and vendor risk: dependency on external model providers with limited transparency or control
  4. 05

    Model Inventory and Registration

    • Every AI system in use — including embedded vendor features and internal copilots — must be captured in a central inventory
    • Registration should capture: purpose, owner, data sources, model provider/version, and business criticality tier
    • Shadow AI usage (unsanctioned tools adopted by business units) is a primary near-term inventory gap
    • Inventory should distinguish traditional models, generative models, and hybrid/agentic systems, since risk profiles differ
    • Criticality tiering determines the depth of validation, monitoring, and approval required before deployment
  5. 06

    Validation and Pre-Deployment Testing

    • Extend validation beyond accuracy metrics to include robustness, adversarial testing, and prompt injection resistance
    • Red-teaming and structured adversarial testing should be standard practice for customer-facing generative systems
    • Fairness and bias testing must account for language, tone, and demographic proxies, not only structured features
    • Human-in-the-loop review is required for high-criticality use cases prior to go-live
    • Sign-off should be tied to intended use case, not the underlying model in isolation — the same model can carry different risk in different applications
  6. 07

    Ongoing Monitoring Post-Deployment

    • Performance monitoring must run continuously, not only at periodic revalidation checkpoints, given how quickly usage and prompts evolve
    • Drift monitoring should track both data drift and behavioral drift from underlying vendor model updates outside the organization's control
    • Fairness and output-quality monitoring should sample production interactions, not rely solely on pre-deployment test sets
    • Automated guardrails (content filters, output validators, escalation triggers) should be paired with periodic manual review
    • Monitoring ownership should be explicit and tied to the three-lines-of-defense structure, not left to the deploying business unit alone
  7. 08

    Three Lines of Defense Applied to AI

    • First line: business and technology teams building and operating AI systems, accountable for day-to-day controls
    • Second line: model risk and compliance functions setting standards, performing independent validation, and monitoring adherence
    • Third line: internal audit providing independent assurance over the end-to-end governance program
    • AI systems require closer coordination between lines given the speed of vendor model updates and shorter development cycles
    • Second-line capacity and AI-specific expertise are typically the binding constraint in scaling this model
  8. 09

    Vendor and Third-Party Model Risk Assessment

    • Third-party model risk should be assessed with the same rigor as internally developed models, adjusted for reduced transparency
    • Key diligence areas: training data provenance (to the extent disclosed), update cadence, data handling, and sub-processor use
    • Contractual protections should address model change notification, data usage restrictions, and audit or attestation rights
    • Concentration risk matters: heavy reliance on a single foundation model provider is itself a risk to be tracked and reported
    • Exit and fallback plans should be defined before deployment, not after an incident
  9. 10

    Illustrative Governance Rollout Example

    • Illustrative scenario, not a verified case study — presented to show a plausible sequencing, not an audited outcome
    • Phase 1 (0-3 months): inventory sweep, criticality tiering, and interim policy for new AI use cases
    • Phase 2 (3-6 months): validation standards and monitoring tooling stood up for highest-tier use cases first
    • Phase 3 (6-12 months): three-lines-of-defense roles formalized, vendor assessment process embedded in procurement
    • Phase 4 (12+ months): steady-state monitoring, periodic revalidation cadence, and audit readiness
  10. 11

    Regulatory Context

    • Existing model risk guidance such as SR 11-7 remains the foundational reference point and generally extends to AI systems in principle
    • Supervisory expectations increasingly emphasize explainability, monitoring, and accountability for automated decision-making generally
    • AI-specific regulation is still developing across jurisdictions, with more prescriptive requirements expected over time
    • Approach: treat current guidance as a floor, and build governance capacity ahead of specific new AI regulatory requirements
    • Legal and compliance should track jurisdiction-specific developments relevant to the firm's footprint on an ongoing basis
  11. 12

    Incident Response for Model Failures

    • Define what constitutes an AI incident: harmful output, data exposure, biased decision, or system misuse
    • Establish clear escalation paths from first-line teams to model risk, compliance, and legal within defined time windows
    • Maintain a kill-switch or rollback capability for production AI systems, tested prior to go-live
    • Post-incident review should feed back into validation standards and monitoring thresholds, not remain a one-time fix
    • Track incident trends over time as a leading indicator of program maturity, not just individual event severity
  12. 13

    Documentation and Audit Trail Requirements

    • Every registered model requires a documented purpose, validation record, approval history, and monitoring log
    • Prompt and output logging should be retained for high-criticality use cases to support review and investigation
    • Version control is required for prompts, fine-tuning data, and configuration changes, not only for the base model
    • Documentation should be structured for both internal audit and external examiner review without ad hoc reconstruction
    • Retention and access policies must balance audit readiness with data minimization and privacy requirements
  13. 14

    Common Pitfalls to Avoid

    • Treating AI governance as a one-time compliance exercise rather than a continuously monitored program
    • Allowing business units to adopt AI tools outside the inventory process, creating shadow AI exposure
    • Applying pre-generative-AI validation checklists without adapting them to open-ended model behavior
    • Underestimating dependency risk on third-party model providers with limited visibility into changes
    • Delaying second-line and audit involvement until after significant deployment, rather than building it in from the start
  14. 15

    Next Steps and the Ask

    • Approve a 90-day inventory sweep to establish a complete, tiered view of AI use across the organization
    • Commit second-line resourcing to build AI-specific validation and monitoring standards for highest-tier use cases
    • Mandate that new AI use cases route through registration and approval before production deployment, effective immediately
    • Direct procurement and legal to embed AI vendor risk assessment into the existing third-party risk process
    • Establish a quarterly reporting cadence to this group on inventory growth, validation backlog, and incident trends