Hot take:
We don't need a more powerful model like Mythos right now.
GPT-5.5 (5.6 coming soon), Opus 4.8, and similar models are already more than capable for most use cases.
What we need to solve is the cost problem.
If AI keeps getting significantly more expensive, 99% of developers won't be able to afford these models at scale and will end up going back to manual coding.