Use Cases / Financial Services

LLM governance for financial institutions

FINRA and OCC examiners expect prompt-level records. Meibel gives your AI teams the audit trail and PII controls that extend your existing SR 11-7 and GLBA Safeguards posture to LLM workloads — without changing your deployed model SDK. It closes the AI governance gap in your compliance program; it does not replace the program.

The compliance gap in financial LLM deployments

When a wealth advisor uses an LLM to summarize client account activity, every prompt may contain: account numbers, SSNs, beneficial owner names, AUM figures. Without a policy layer, all of this reaches the upstream model API uncontrolled.

FINRA's guidance on AI supervision (Regulatory Notice 22-18) and OCC interpretive letters establish expectations for record-keeping and supervision that match what Meibel logs by default.

The gap most teams discover at their first compliance review: no prompt-level records, no model version trail, no evidence of what the model was asked when it produced an answer the regulator is now asking about.

Early pilot — regional bank

"Meibel's audit trail satisfied our compliance review in the first pass. We had a complete prompt-level evidence package for our FINRA exam team without pulling anything manually."

Head of AI Strategy — Regional Financial Institution (~$40B AUM)
How Meibel fits
Financial entity redaction
Account numbers (FIN_ACCT_NUM), CUSIPs, ISINs, AUM values, beneficial owner names — all detected and replaced before the model sees them. Replaceable masks let the model reason about the structure without seeing raw data.
FINRA-ready audit records
Every call logged with prompt version hash, redaction count, model version, and UTC timestamp. Query by date range, model, or tenant — the exact format compliance teams need for exam response packages.
Wealth vs. retail isolation
Hard tenant boundaries between business lines. Wealth advisory queries never cross into retail banking context — enforced at the proxy layer, not relying on application code.
Cost attribution by department
Per-department LLM call budgets with finance-readable cost attribution. Soft warnings before hard cuts — no surprise model API bills at month end.
In production with regulated financial institutions

The audit trail gave us something we hadn't had before: a complete evidence package for our compliance review — model version, redaction log, policy verdict — without anyone having to reconstruct it after the fact.

Head of AI Strategy — Regional Financial Institution (~$40B AUM)

Our CISO's blocking question was whether PII left the network in model prompts. Meibel's redaction layer gave us a defensible answer: no — here is the redaction count per call, here is the entity type list, here is the policy verdict timestamp. That is an auditable fact, not an attestation.

Chief Data Officer — Global Reinsurer (top-20 by gross written premium)

Ready for your next compliance review.

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