this post was submitted on 23 Apr 2026
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Anthropic Mythos shaping up as nothingburger (www.theregister.com)
submitted 2 weeks ago by HaraldvonBlauzahn@feddit.org to c/programming@programming.dev
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[...]

That marketing may have outstripped reality. Early reports from Mythos preview users including AWS and Mozilla indicate that while the model is very good and very fast at finding vulnerabilities, and requires less hands-on guidance from security engineers - making it a welcome time-saver for the human teams - it has yet to eclipse human security researchers.

"So far we've found no category or complexity of vulnerability that humans can find that this model can't," Mozilla CTO Bobby Holley said, after revealing that Mythos found 271 vulnerabilities in Firefox 150. Then he added: "We also haven't seen any bugs that couldn't have been found by an elite human researcher." In other words, it's like adding an automated security researcher to your team. Not a zero-day machine that's too dangerous for the world.

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[–] sobchak@programming.dev 3 points 2 weeks ago

So far we’ve found no category or complexity of vulnerability that humans can find that this model can’t

This seems like a statement designed to deceive. I would like to see comparisons like the percent of vulnerabilities Mythos found that an expert also found (and somehow make sure those vulnerabilities weren't leaked into the training data and the prompts don't hint at the answer).