How to Use the JSON Structured Output Designer
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1
Set your object model name (e.g. UserProfile or InvoiceData).
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2
Add fields with name, type (string, number, boolean, array, object), and description.
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3
Check "Required" for mandatory fields and export the strict JSON schema.
Practical Example & Use Case
Common Real-World Scenario
Generating a strict OpenAI schema for extracting invoice date, vendor, total, and line items without formatting errors.
Technical Notes & Limitations
Browser Engine Architecture
Generates JSON Schema draft-07 and draft-2020-12 compatible syntax.
Frequently Asked Questions
Why is strict mode important?
OpenAI Strict Mode guarantees 100% adherence to schema types with zero hallucinations or missing fields.