You're listing plain models, so I'm assuming you're using them directly. Aider and similar agents use those models but they don't step at the first answer. You can add test running and a linter to the request and it will essentially enter a loop like: what are the steps to solve (prompt)?; here's a map of the repository, which files do you need?; what's your proposed change?; here's the final change and the test run, do you think the problem has been solved?; (go back to the beginning if not)

See the video at https://plandex.ai/ to get an idea how it works.