Structured Output Prompting

Force LLMs to emit valid JSON, XML, YAML, or any structured format. Master JSON mode, function calling, Pydantic schemas, and grammar-constrained decoding.

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6

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Lessons in This Skill

Work through these 6 lessons in order, or jump to whichever topic you need most.

JSON Mode and Strict Outputs

Beginner

Pydantic Schema Validation

Intermediate

Grammar-Constrained Decoding

Advanced

Nested and Recursive Structures

Advanced

Schema Coercion and Repair

Intermediate

When to Use Structured Output

Beginner