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Pydantic · Decorator

model_validator

model_validator() validates data for the complete Pydantic model. Its mode controls whether the check runs before validation, after validation, or around the validation process.

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Syntax

@model_validator(mode='before' | 'after' | 'wrap')

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  • field_validator()
  • BeforeValidator
  • AfterValidator
  • WrapValidator

Source: Validators | Pydantic Docs. Checked 2026-11-03.