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Ormdantic vs SQLAlchemy

SQLAlchemy is the most complete Python ORM and SQL toolkit. Ormdantic takes a narrower path: Pydantic models in Python and a Rust runtime for ORM execution.

Area SQLAlchemy Ormdantic
Model layer SQLAlchemy declarative models Pydantic v2 models
Runtime Python SQL toolkit and ORM Rust SQL compiler and native execution
Async behavior Async APIs over explicit engines/sessions Async-first facade with explicit loading
Relationships Mature loader strategies Rust-owned joined/depth loading and explicit lazy loading
Scope Broad SQL toolkit Focused ORM for Pydantic-first applications

Choose Ormdantic when you want validation-first data models and a smaller Rust-backed runtime surface. Choose SQLAlchemy when you need the deepest SQL toolkit and ecosystem coverage.