Will bigger context windows stop AI regressions?
No. A bigger context window lets the model read more of the codebase per change, which improves its inference. But reading is not remembering, and the decisive information is not in the code at all. Why a branch exists, which duplication is deliberate, where a boundary must hold: none of that is written anywhere a model can read, however large the window.
From Why AI keeps breaking features that already worked, published 20 August 2026. That article is where the reasoning behind this answer is set out, including what it does not cover.