Hallucination

Implement confidence scoring to communicate output certainty alongside each result. Calibrate before deployment.

Define model accuracy acceptance criteria aligned to business requirements before validation commences.

Implement counterfactual explanation to show users what changes would alter the model's output.

Communicate model accuracy, known limitations, and uncertainty to users in the production interface at launch.

Monitor production accuracy continuously against the validated baseline. Trigger model review when accuracy degrades.

Specify a RAG architecture at design stage for factual domains. Define grounding requirements and acceptable hallucination thresholds.

Evaluate foundation model candidates on hallucination benchmarks at design stage. Select models with lowest documented rates.

Design system prompts to instruct the model to acknowledge uncertainty, cite sources, and refuse when knowledge is insufficient.

Fine-tune on a curated, domain-specific dataset to improve factual accuracy. Validate hallucination rates pre/post fine-tuning.

Configure conversation controls at deployment to restrict the model to approved topic domains and escalate off-topic queries.

Establish acceptable hallucination rate thresholds and grounding requirements as policy before build. Assign a named risk owner.

Configure tiered HITL review for high-stakes factual outputs with defined trigger criteria and reviewer SLAs.

Calibrate the initial entropy threshold on a knowledge-boundary dataset; approve sampling design and thresholds per risk tier.

Map each fact class to a designated tool, embed the no-ungrounded-assertion prompt, and gate build review on grounding tests passing.

Resolve every emitted citation against the approved corpus and verify span-level entailment before display. Strip or withhold claims with fabricated or non-entailing references.

Define and execute a domain-specific hallucination test suite before deployment. Treat hallucination rate above threshold as a blocking defect.

Construct synthetic evaluation datasets for knowledge-boundary scenarios. Use to validate model refusal behaviour.

Calibrate the groundedness threshold against the hallucination test suite pre-release; sign off the threshold in the validation pack.

Use production feedback (user corrections, fact-check failures) to drive periodic RLHF cycles. Update model when error rates trend upward.

Require user-facing interfaces to disclose Gen AI limitations and hallucination risk before go-live.

Score every RAG answer for groundedness before release; block, fall back, or escalate responses below the faithfulness threshold.

Sample multiple generations for high-stakes queries and abstain, fall back, or escalate when semantic entropy exceeds the calibrated threshold.