Multi-Model Enrichment & Fusion - Entity Enricher

Multi-Model Enrichment & Fusion

Run multiple AI models in parallel on the same entity, detect field-level conflicts between their outputs, and fuse the results into a single high-confidence record. This is Entity Enricher's core differentiator: instead of trusting a single LLM, you cross-validate across providers for maximum data accuracy.

How Multi-Model Enrichment Works

INPUT

Entity Data + Schema

Claude

Enriches independently

GPT-4

Enriches independently

Gemini

Enriches independently

CONFLICT DETECTION

Field-by-field comparison across all model outputs

OPTION A

Rule-Based Merge

Majority vote, median, union

OPTION B

LLM Arbitration

AI resolves with reasoning

FUSED OUTPUT

Single high-confidence record with audit trail

Parallel Model Execution

When you select multiple models for an enrichment job, Entity Enricher sends the same entity data and schema to each model simultaneously. Each model runs independently with no knowledge of other models' outputs, ensuring truly independent data points.

The system supports any combination of providers -- Anthropic Claude, OpenAI GPT-4, Google Gemini, Mistral, or self-hosted models via Ollama. Per-provider rate limiting ensures you stay within each provider's API limits while maximizing throughput.

Real-time SSE streaming shows progress as each model completes, including per-expertise progress when using the multi-expertise strategy. You can see partial results before all models finish.

Type-Aware Conflict Detection

After all models complete, the conflict detection engine compares their outputs field by field. The comparison is type-aware -- different field types use different comparison rules:

Field TypeComparison MethodAgreement Rule
String / ScalarExact match (normalized)All values must be equal after case/whitespace normalization
NumberExact numeric matchAll values must be identical numbers
BooleanExact matchAll models must agree on true/false
MultilingualPer-language comparisonEach language key compared independently
ArraySet comparison (order ignored)Same items regardless of order
ObjectRecursive per-propertyAll nested fields must match
Null valuesnull == missingNull and absent are treated as equivalent

Conflict Resolution Methods

Rule-Based Merge

Deterministic resolution using voting rules. Fast, predictable, and requires no additional LLM call.

  • Strings: Majority vote. Ties broken by longest value (more detail is better).
  • Numbers: Median value. Robust to outliers from any single model.
  • Booleans: Majority vote. True wins on ties (conservative).
  • Arrays: Union of all items. Preserves all information.
  • Objects: Recursive per-field application of the above rules.
  • Null: Non-null values preferred. Missing data is worse than any value.

LLM Arbitration

An arbitration model reviews each conflict with the entity context and field descriptions, then makes a structured decision.

  • Reasoning: Each decision includes a natural language explanation of why one value was chosen.
  • Confidence: High, medium, or low confidence score per decision.
  • Chosen value: The arbitrator selects from the available model outputs or synthesizes a better answer.
  • Fallback: If arbitration fails, the system automatically falls back to rule-based merge.

Full Audit Trail

Every fused record includes arbitration metadata with complete provenance:

This metadata is stored alongside the fused record and exported in the Excel conflict sheet, making it suitable for compliance workflows where decision provenance matters.

When Multi-Model Enrichment Matters Most

High-Stakes Data

Financial due diligence, pharmaceutical safety profiles, and compliance screening where errors have material consequences.

Contested Facts

Entities with conflicting information across sources -- funding amounts, founding dates, or regulatory statuses that different sources report differently.

Coverage Gaps

When no single model has complete knowledge. Different LLMs are trained on different data, so running multiple models fills gaps.

Confidence Requirements

When downstream consumers need confidence scores and provenance for each data point, not just the final values.

Try Multi-Model Enrichment

Select 2+ models, run them in parallel, and see how fusion resolves conflicts. No monthly commitment -- bring your own API keys and pay per token.

Get Started Free