Technical whitepapers

Engineering notes from the NEXOS team

Long-form technical writing on the engines behind NexosIQ, CostIQ, and NexosIQ Search — published for engineers evaluating the platform and for anyone who cares how the extraction actually works.

April 2026 6 min

The Engineering Behind 99% Extraction Accuracy

How multi-pass OCR outperforms template-based systems

Technical deep-dive on NexosIQ's three-pass adaptive extraction pipeline, measured accuracy across scenarios (clean PDFs, phone photos, faded thermal receipts, unseen vendors), per-tenant RAG learning, and the engineering trade-offs behind our accuracy numbers.

Topics we're planning: CostIQ categorization internals, per-tenant RAG architecture, the Plaid reconciliation model. Got a technical question you want answered in long form? Ping us.