When two AIs grade each other, they can agree their way into wrong answers

Two copies of one model that write and grade each other’s questions can look healthy while agreeing on more wrong answers.

October 17, 2026 · 4 min · Kush Bhatnagar

Training an AI for one skill quietly changes its other answers

Post-training a model for one skill nudges its answers on unrelated questions, and that changes how I think about protecting models from copying.

October 4, 2026 · 2 min · Kush Bhatnagar