Serenity Strull/ BBC/ Getty ImagesThey built it. They're scared of it. They're selling it anyway.Stop me if you've heard this one before: a tech company says it's built a new AI that's so powerful it's scary. Apparently, it's too dangerous to release into the world – the consequences would be catastrophic. Luckily for us, they are keeping it locked up for now. They just wanted you to know.That's exactly what AI company Anthropic is telling us about its latest model, Claude Mythos. The company sa...