Structured Output

Concept

Guardrails & Output Validation

LLMs don't come with guarantees. Guardrails and output validation are how you enforce safety, structure, and policy on probabilistic outputs before they reach users.

Concept

Structured Outputs Explained

Structured outputs make models return valid JSON every time — no more parsing failures, no more 'almost JSON.' Here's how they work and when to use them.

Interview

Your LLM keeps returning invalid JSON for structured outputs. How do you fix it systematically?

Tests production reliability — structured outputs power agents, evals, and integrations; failures can't be hand-waved.