5 AI Systems That Combine LLM Flexibility With Deterministic Rules
goyalshaliniuk · x · 2026-09-16
The author argues LLMs shouldn't control every decision — the strongest AI systems combine LLM flexibility with deterministic rules, illustrated with five practical examples:
- Customer support: LLM understands messages; rules set permissions (answer FAQs, check orders, escalate angry users, block unauthorized refunds).
- Fraud detection: LLM explains patterns; rules enforce risk policy (flag anomalies, block violations, extra verification, human review).
- Document processing: LLM extracts data from invoices/contracts/forms; rules validate fields, dates, totals and formats.
- Compliance assistant: LLM summarizes and explains policy; rules enforce approvals, restrictions and permissions.
- The common pattern: models handle fuzzy input and natural language, deterministic logic protects accuracy, safety and compliance.
Related event: Don't Let the LLM Decide Everything: Five LLM + Rules Hybrid Patterns(2 posts)→
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