What happened in the computer programming space (with testable outputs) is that the first pass 80% accuracy nailed down an 80% success rate - wrote code that successfully met requirements 4/5 trials. Then, the agents were able to repeat the 1/5 failing trials with "sufficient heat" to both find their problems and create workable solutions, again 4/5 trials - so 80% success rate becomes 96% success rate, and so on... Back in early 2025, programming LLM agents would get themselves caught in iterative loops - trying, failing, trying again, failing again, then trying the first approach again - failing indefinitely. By mid 2026, I don't see that behavior anymore - if the first "light pass - quick attempt" solution doesn't succeed, they dig in deeper - do more research specifically focused on the problem areas identified in the first failure and try again, generally successful by the 2nd try, almost always by the 3rd - I haven't had to break a "trying the first unworkable solution again because I can't think of anything else to do" loop in over 6 months.
Not all problem spaces are as clear-cut as software creation, but many have similar rules that just take a bit more training to learn.