On Mythos: I know it feels utterly wrong and bad to say it's better/safer if this capability was widely available and e.g. open sourced, but…

On Mythos: I know it feels utterly wrong and bad to say it's better/safer if this capability was widely available and e.g. open sourced, but it actually might be. Anthropic could now be sitting on so many zero-days for countless companies, institutions, etc... It's noble of them to not deploy and build this defensive coalition first, but historically these kinds of power overhangs are very risky In the short term, it's positive that this capability is not open; IMO in the long term, we're all better off if it's diffused so that power is not centralized with one actor (no matter how noble). So kudos to Anthropic for taking the step; now the open source frontier will and should catch up; it'll be a bloodbath at first but it'll lead to better security mindset and infra

In different hands, Mythos would be an unprecedented cyberweapon I am not sure how we deal with this, except to note a narrow window where w…
Yesterday’s Mythos announcement from Anthropic was overblown. • Sandboxing was turned off, so test didn’t show much about the real world. • …
I think the story that was shared in the Mythos System Card still has the signs of flawed LLM writing (which looks like good writing at firs…
I was told about the Mythos release, but didn't have access, so have no personal experience to add. Two points from brief: 1) It is not buil…
Feels like one of the cybersecurity risks over the coming months will be widely used open-source projects that are simply too lightly mainta…

Source: Clem Delangue (X) | 2026-04-08

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