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System Card: Claude Mythos Preview [pdf]

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Re: System Card: Claude Mythos Preview [pdf]

#671

Earlier quoted context omitted.

Because physics is knowable, and I don't think an unknowable thing can be created from a knowable thing.

Why not? Human mind has its limits. The complexity of physics is orders of magnitude smaller than biology, let alone any kind of social science. Physics is the exception, not the rule. The rest of sciences are way more messy.

What are the limits? What have we run up against that we couldn't understand, no matter how much we tried?

Re: System Card: Claude Mythos Preview [pdf]

#672

Across a number of instances, earlier versions of Claude Mythos Preview have used low-level /proc/ access to search for credentials, attempt to circumvent sandboxing, and attempt to escalate its permissions. In several cases, it successfully accessed resources that we had intentionally chosen not to make available, including credentials for messaging services, for source control, or for the Anthropic API through insp…

The issue here seems to be that their sandbox isn't an actual OS sandbox? Or are they claiming Mythos found exploits in /proc on the fly. Otherwise all they seem to be saying is that Mythos knows how to use the permissions available to it at the OS layer. Tool definitions was never a sandbox, so things like "it edited the memory of the mcp server" doesn't seem very surprising to me. Humans could break out of a "sandb…

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Re: System Card: Claude Mythos Preview [pdf]

#673
post #347

Earlier quoted context omitted.

> Combined results (Claude Mythos / Claude Opus 4.6 / GPT-5.4 / Gemini 3.1 Pro) > Terminal-Bench 2.0: 82.0% / 65.4% / 75.1% / 68.5% > USAMO: 97.6% / 42.3% / 95.2% / 74.4% > The biggest jump in the numbers they quoted is 6%. Just in the numbers you quoted, thats a 16.6% jump in terminal-bench and a 55.3% absolute increase in USAMO over their previous Opus 4.6 model.

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Can you please stop posting comments with personal swipes in them? You've unfortunately been doing it repeatedly. It's not what this site is for, and destroys what it is for.

If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and taking the intended spirit of the site more to heart, we'd be grateful.

Re: System Card: Claude Mythos Preview [pdf]

#674
post #333

Earlier quoted context omitted.

The biggest jump in the numbers they quoted is 6%. Please look at the columns OTHER than Opus as well.

[flagged]

Please don't respond to a bad comment by breaking the site guidelines yourself. That only makes things worse.

https://news.ycombinator.com/newsguidelines.html

Re: System Card: Claude Mythos Preview [pdf]

#675
post #673
post #347

Earlier quoted context omitted.

[flagged]

Can you please stop posting comments with personal swipes in them? You've unfortunately been doing it repeatedly. It's not what this site is for, and destroys what it is for. If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and taking the intended spirit of the site more to heart, we'd be grateful.

You're right, I apologize for that. I have been responding with annoyance rather than walking away when I receive replies that appear to be ignoring context.

Re: System Card: Claude Mythos Preview [pdf]

#676
post #675
post #673

Earlier quoted context omitted.

Can you please stop posting comments with personal swipes in them? You've unfortunately been doing it repeatedly. It's not what this site is for, and destroys what it is for. If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and taking the intended spirit of the site more to heart, we'd be grateful.

You're right, I apologize for that. I have been responding with annoyance rather than walking away when I receive replies that appear to be ignoring context.

Appreciated! and of course, I know it's not easy - believe me I know...

Re: System Card: Claude Mythos Preview [pdf]

#677
post #396
post #377

Earlier quoted context omitted.

When did you last compare them? Codex right now is considerably better in my experience. Can't speak for Gemini.

Tried Gemini 2 weeks ago to see where it's at, with gemini-cli. Failed to use tools, failed to follow instructions, and then went into deranged loop mode. Essentially, it's where it was 1.5 years ago when I tried it the last time. It's honestly unbelievable how Google managed to fail so miserably at this.

I have not experienced any issues with Gemini 3.1 Pro.

Re: System Card: Claude Mythos Preview [pdf]

#679
post #582

Earlier quoted context omitted.

If anything I’m seeing too much skepticism and not enough alarm. People burying their heads in the sand, fingers in their ears denying where this is all going. Unbelievable except it’s exactly what I expect from humans.

Alarm from hype is what they want, you are playing straight into their PR dept's hands

I'm not talking about Anthropic in particular. Other frontier labs will only be at most a year behind.

I'm seeing the future here beyond just what's in front of us.

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