Lazy Model

lazy-model is a Python library that provides a lazy interface for parsing objects into Pydantic models. It defers the parsing and validation of individual fields until they are explicitly accessed, saving the raw data within the object initially. This approach can significantly improve performance and reduce memory consumption, especially for large or complex data structures where not all fields are always needed immediately. The library is currently at version 0.4.0 and appears to have an active, though not rapid, release cadence, with its latest release in August 2025.