The best coding model, unless you're coding ...

Reviewing a thousand lines of generated code quickly degrades into superficial scrolling over syntax and formatting. To verify logic, write test suites first. Prompt the model to write code in twenty-line increments, verify with automated suites, and review only architecture.

Reviewing code you could not write yourself is highly difficult. An eight hundred line pull request with complex SQL passes tests, so you merge. A migration locks a table because no one understood the generated logic. Write tests first so the model has to satisfy conditions you already proved.