That's an example of why it would be useful for someone to actually do it. A random commenter on HN is one thing. A direct comparison on a brand new app that isn't part of any training is another

People need to stop repeating this because it’s not true. Yes, other models can find the same vulnerabilities Mythos found… if pointed at the exact code that has each vulnerability. It does not mean they are nearly as capable when starting from scratch, or when chaining multiple (often very obscure) vulnerabilities).