A Model Swap Is a Migration, Not a Toggle

Swapping AI models is a migration process rather than a simple toggle, as changes can lead to null data fields and schema issues if shipped without fixtures or gates. Furthermore, developers should threat-model the egress payload instead of the model itself. Since models and pricing fluctuate rapidly, the primary risk is shipping incorrect bytes. Establishing a boundary ledger is more critical than benchmarks, especially for AI features integrated into browsers or side projects with unreviewed egress paths.