Interesting to see Anthropic now downplaying the new vulnerabilities that Mythos discovered:

> We reviewed a demonstration of this specific technique being used to identify a small number of previously known, minor vulnerabilities. These vulnerabilities all appear relatively simple, and we have found that other publicly-available models are able to discover them as well without requiring a bypass

▲

Tiberium 2 days ago | parent | next [-]

I think what they're saying is that this prompt/jailbreak only lets Mythos discover some really easy vulnerabilities that it probably fixes from a simple "Find and fix bugs in this code" and that this can be easily done by other models like GPT-5.5. Which is very different from targeted security research.

	▲	chatmasta 2 days ago \| parent [-]
		But it’s not that different from the whole premise of their red team scaremongering which was “we pointed the model at a source file and told it to find an exploit.”

▲

bonsai_spool 2 days ago | parent | prev | next [-]

> Interesting to see Anthropic now downplaying the new vulnerabilities that Mythos discovered:

That is absolutely NOT what is being said there.

They are referring to a very specific thing that you must have clearly seen and chosen to ignore—a jailbreak for LLMs that is used on other models and to some effect with Fable 5.

▲

llelouch 2 days ago | parent [-]

Dude, have people not realized there are a lot of anti-anthropic propaganda every since OpenAI started losing. It's all over reddit and twitter. So many bots.

	▲	sensanaty 2 days ago \| parent [-]
		Yeah cause Anthropic definitely doesn't do their own guerilla marketing all over the place. The entire internet is full of bots shilling all these garbage companies and their dogshit products.

▲

operatingthetan 2 days ago | parent | prev | next [-]

Their hubris just became lethal for their business. Whoops, I guess.

▲

cespare 2 days ago | parent | prev [-]

AFAICT this is not talking about Glasswing stuff. They are saying that they were sent a demonstration of Fable 5 being used/abused in some specific way that led to the "discovery" of some minor, already-known vuln, and that other models can find it too. IOW, they're claiming that the USG's complaint is baseless and dumb.