Karchu

AI finance learning center

Short, honest explainers of how AI reads and reasons about financial documents. Written for humans, not machines.

  • What is OCR?
    A plain-English primer on optical character recognition: how it works, why it fails, and what modern OCR really does.
  • How AI reads bank statements
    The pipeline behind AI-assisted statement parsing: layout inference, text extraction, hybrid language models, and validation.
  • How AI detects expenses
    How automated expense detection works, from receipt capture to duplicate matching, with the failure modes to watch for.
  • How AI categorizes transactions
    Where machine learning helps in transaction categorization, where deterministic rules still win, and how the two can coexist.
  • How AI finds duplicate expenses
    The techniques behind duplicate detection: fingerprints, fuzzy matching, and cross-account reconciliation.