Sakana AI's self-improving model gets better at solving and judging, but can't catch its own blind spots
Sakana AI's MASS method has a single language model solve tasks, judge the results and refine its workflows, reaching a win rate close to 70 percent against the base model after two rounds. The catch: when the model misses the same error in all three roles, it can treat that error as progress and reinforce it in training.