567 Labs
Get reliable structured output from any model API.
GitHub Stars
13.2K
Contributors
251
PyPI / Month
15.0M
What the engine gives you out of the box, in plain language.
Describe the output you want as a typed Python model.
Re-asks the model automatically when output does not match.
Use the same approach across OpenAI, Anthropic, and local models.
The jobs this engine is best suited for.
Extract structured data without writing parsing code.
Force arguments to match a defined schema.
Feed downstream systems output that always fits the expected shape.

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