Build AI Features That Read Documents, Screenshots and Charts

For developers adding document and image understanding to an app. Learn how a model reads an image in patches and what each picture costs, then extract fields from receipts and invoices into a strict JSON schema and check every reply with arithmetic and policy rules. Route PDFs to their text layer, OCR or page images; read chart values without inventing precision; and use photos as evidence while a person makes the decision. Measure extraction field by field, count the errors that get paid, and redact images before they leave your servers. Finish by building and scoring an expenses checker on Groq’s free plan, or with no key in mock mode.