Structured outputs and validation
Comes up in: AI engineering, Coding
This concept is being written. It gets the full five steps — explanation, predict, interview angle, practice with tests, and review cards. Here is exactly what it will cover, so you can study it elsewhere in the meantime.
What it covers
- JSON-schema-constrained output (provider structured output features — facts)
- validating with Zod/Pydantic anyway
- handling refusals and truncation
- schema design for LLMs (enums, descriptions)
- extracting data from documents
Words you will know
What you will practise
- invoice extractor with schema + eval
Interview questions this answers
- How do you get reliable JSON out of an LLM?
- How would you extract structured data from 10,000 PDFs?