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Pydantic · Class

BaseModel

BaseModel is the base class for Pydantic models. Define annotated fields on a subclass, then create instances to validate input and hold the resulting data.

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Syntax

class Model(BaseModel):
    field: Type

In-depth API docs are only for subscribers: parameters, examples, common mistakes and interview practice.

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  • model_validate
  • model_rebuild
  • model_post_init
  • model_parametrized_name
  • create_model
  • GenerateJsonSchema

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