Feature Request: Dynamically generate code for SQLModels from existing Pydantic models

[chitralverma]

First Check

• I added a very descriptive title here.
• I used the GitHub search to find a similar question and didn't find it.
• I searched the SQLModel documentation, with the integrated search.
• I already searched in Google "How to X in SQLModel" and didn't find any information.
• I already read and followed all the tutorial in the docs and didn't find an answer.
• I already checked if it is not related to SQLModel but to Pydantic.
• I already checked if it is not related to SQLModel but to SQLAlchemy.

Commit to Help

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Example Code

from sqlmodel import pydantic_to_sqlmodel
from external_lib import UserSchema  # a plain Pydantic model

UserORM = pydantic_to_sqlmodel(
    UserSchema,
    table_name="users",
    primary_key="id",
    uniques=["email"],
    indexes=["email"]
)

# Use like any SQLModel
session.add(UserORM(id=1, name="Alice"))
session.commit()

Description

Problem
In many projects, Pydantic models are the source of truth, especially when they come from an external library.
Currently, sqlmodel requires models to extend SQLModel (or Base), which means duplicating models or modifying upstream code.

This creates friction when:

• You cannot modify the Pydantic model (external package, shared library).
• You want to keep Pydantic as the validation/ serialization layer and still persist the same data using SQLAlchemy.
• You’d like to avoid duplicating fields as both Column and Pydantic attributes.

Proposed Solution
Provide a function or helper to generate a SQLModel (or plain SQLAlchemy declarative model) from an existing Pydantic model, without requiring decorators or inheritance.

Benefits

• Keeps Pydantic as the single source of truth.
• Works with unmodifiable external Pydantic models.
• Removes boilerplate duplication when persisting validated data.

Operating System

macOS

Operating System Details

No response

SQLModel Version

0.0.24

Python Version

Python 3.13.5

Additional Context

I checked around to see if something is already available on these lines but couldn't find anything.