FinTech company — AI-powered claims processing
The model was making errors that nobody could explain. The development team assumed it was a model problem — spent weeks on architecture changes that didn't move the needle. When we looked at the training data, the annotation was inconsistent in ways that only appeared in specific edge cases. Different annotators had been interpreting the same guideline differently.
We rebuilt the labeling workflow, standardized the guidelines, added human validation checkpoints at the edge cases that were causing failures, and had a corrected pipeline running within 72 hours of starting.
Result
Annotation inconsistencies eliminated. Production errors that had been costing roughly $150,000 annually stopped occurring within 72 hours of the corrected pipeline going live.
Full case study available on request

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