Interesting how they claim to boost accuracy over the highest accurate model they use, just by mixing models?

I've been trying something similar on Roo Code, where I let Claude do the architecture and use self-hosted models for everything else. qwen3-coder isn't as good as claude-4-sonnet in coding, but it's still decent enough to let it slug it out.

I've been trying to build a special "hard-problem debug" mode but since I haven't found a single model that is capable of fixing concurrency issues without constant manual interruption (incl all of the commercial closed models) I've put that on hold. But this makes me think that if I can alternate between a model that's good at determination, and let it guide / judge a coder model... this may work?