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areoform 6 hours ago

When Fable was yanked, it was said to be (in part) due to the "jailbreak" of instructing Fable to "fix this code" — https://news.ycombinator.com/item?id=48552687

Dumb question. If "Mythos-class" models are such a problem, then... why not just let it fix everyone's code?

There can't be more than a few million to tens of millions software businesses / services / regularly used F/OSS projects on Earth.

Why not just give everyone a $100 Fable / Mythos credit to "fix [their] code?"

It would arguably benefit Anthropic. For $100M to $1B, Anthropic could execute the greatest ad campaign in human history. And they'd make the entire world more secure.

Most people aren't malicious. If you, as an engineer, consultant, founder, business owner, or maintainer, were given access to Mythos' capabilities wouldn't you ask it to fix your code?

I might be wrong. But I think that a greater amount of harm will be done in the long-term by trying to lack these capabilities and systems away behind permission gates and sealed doors. It creates an asymmetric world with haves and have nots. And in that world who gets to have access now decides who gets to be secure.

If everyone has mythos, no one has "Mythos."

Just let people fix their code.

andy99 5 hours ago | parent | next [-]

> If "Mythos-class" models are such a problem, then... why not just let it fix everyone's code?

Because it doesn’t really confer the advantage they claim, especially compared to e.g. paying an equivalent amount of money to do traditional security scanning.

It’s much better to play of FOMO and hype than to let everyone use it and be underwhelmed.

usef- 5 hours ago | parent [-]

Are you claiming that LLMs aren't finding new issues compared to previous methods?

There's a huge number of security issues coming out in recent months, especially via Anthropic (glasswing etc). We don't have to take their word for it: look at the code. Some open source maintainers are talking about burnout due to spending so much time patching.

overgard an hour ago | parent | next [-]

They're probably creating way more vulnerabilities than they're solving. Go look at OpenCode and tell me that any of that is sane. Or fuck, the OG of vibe coding, Claude basically is a terrifying attack vector. It's poorly reviewed and open to prompt injection and yet it basically has access to whatever the user has access to on most corporate machines. They can't even fix flickering bugs but somehow we're supposed to trust that they aren't opening our machines up to terrifying vulnerabilities? It's amazing to me that people will just let it run arbitrarily bash commands in their home directory without thinking, but all the sudden act gravely concerned about security in the age of overhyped LLMs.

usef- an hour ago | parent [-]

I do think security issues in core building blocks like curl and the linux kernel (and almost every significant project) are still a concern even if developers are being sloppy on newly-built apps.

This isn't an "are LLMs net good or bad" argument. It's "are they finding many new security issues or not?". If it's the latter, we want to deal with it no matter where the issues are coming from.

(see: https://news.ycombinator.com/item?id=49077452 )

bee_rider 3 hours ago | parent | prev | next [-]

The suggestion was to have some AI system “fix” the code. They are reporting that they’ve found lots of bugs. Are they even claiming to have exhaustively found all the bugs? I don’t think even the most optimistic pitches would claim that.

I’d expect patching existing codebases to be an eternal treadmill as better models come about.

usef- an hour ago | parent [-]

Who's suggesting that? They're sending reports to projects to fix. It's up to the projects on how they fix them.

No, I don't think all bugs are fixed. The point of the project (glasswing etc) was to fix as many as possible in the core software the world runs on before the capability to find vulnerabilities is available to everyone (black hats included). Which may only be a few months.

I do think everyone expects it to be an ongoing treadmill: models get better, find better vulnerabilities, etc.

K0balt 5 hours ago | parent | prev | next [-]

Yeah, there’s a lot of people that are in the “AI doesn’t work” camp. IDK what to tell them except that they are holding it wrong. My Anthropic subscription (in the hands of an experienced developer) is worth 4 mid tier or 2 top tier devs. And makes better code than the mids. If you “hold it right”.

overgard an hour ago | parent [-]

I think you're describing a strawman. As a proper hater, I know these things have some useful functionality, but most of us don't think "stochastic tool that can do some useful things but also frequently fucks up" is worth two trillion dollars and massive overhyping from the most irritating people on the planet who can't even tell good code from bad.

computably 5 hours ago | parent | prev [-]

Spending their time patching, or reviewing slop "patches"?

usef- 5 hours ago | parent [-]

They're not slop, if you're talking about recent ones. You might still be operating on information for a year or two ago.

Here's the curl project talking about the strain they're under from real reports (despite being a mature and well-vetted project):

> A thirty years old project could make you think you’ve seen most things already, but we have not been in this situation before.

> The rate of incoming security reports is 4-5 times higher than it was in 2024 and double the speed of 2025 – meaning that on average we now get more than one report per day. The quality is way higher than ever before. The reports are typically very detailed and long.

- https://daniel.haxx.se/blog/2026/05/26/the-pressure/

---

Linux kernel maintainer Greg Kroah-Hartman:

> "Something happened a month ago, and the world switched. Now we have real reports." It's not just Linux, he continued. "All open source projects have real reports that are made with AI, but they're good, and they're real." Security teams across major open source projects talk informally and frequently, he noted, and everyone is seeing the same shift. "All open source security teams are hitting this right now."

- https://www.theregister.com/software/2026/03/26/linux-kernel...

---

And ffmpeg, who previously complained about slop, 2025: https://xcancel.com/FFmpeg/status/1984220199193891166

Now say serious issues are being found, 2026: https://xcancel.com/FFmpeg/status/2066169070387413147

(I only point out their previous stance to show that they're not coming from pure AI hype.)

usef- an hour ago | parent | next [-]

This seems a highly controversial post for some reason, judging by the repeated downvotes/upvotes. I'd be curious what I got wrong.

4 hours ago | parent | prev [-]
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StilesCrisis 5 hours ago | parent | prev | next [-]

I don't think a one-time $100 credit is enough. First of all, that isn't very much. But also, the volume of new code is going way up. Unless they keep giving out monthly free credits, it's just a stopgap.

benlivengood 5 hours ago | parent | prev | next [-]

> Dumb question. If "Mythos-class" models are such a problem, then... why not just let it fix everyone's code?

That's basically project Glasswing; mixing responsible disclosure with frontier exploit generators.

usef- 5 hours ago | parent | prev | next [-]

They are doing that (see their project glasswing over the past few months), but there's a lot more code in the world than you realise.

The problem with rolling it out is that bad and good actors can both use it at the same time, and bad actors will typically move faster than typical day-to-day software projects and patching schedules, so they set up glasswing to give access to the major producers and projects to patch their own software before it becomes available more widely (they've submitted tremendous numbers of security issues to open source projects)

bluGill 5 hours ago | parent | prev | next [-]

I doubt most bosses will give engineers the time. They care about security only to the extent that they have already been harmed by a lack of it. I would like to play with mythos, but on my own time my kids have plenty of activities to fill my time. My personal backlog of projects is only getting longer and none of it is something mythos could help. If I had more time is have restored my old truck instead of making payments on something new (in turn limiting what else I can afford to buy)

paxys an hour ago | parent | prev | next [-]

$100 credit on Fable/Mythos will last a grand total of 10 minutes.

overgard an hour ago | parent | prev | next [-]

Because this is all kayfabe. You cannot take a single thing these companies or people say at face value.

xboxnolifes 3 hours ago | parent | prev | next [-]

For starters, it's probably closer to $10,000 per codebase for Fable/Mythos for a full review. That would be around 5 years of their current spending I think.

They really want that level of spend coming into the company, not going out.

slashdave 2 hours ago | parent | prev | next [-]

> why not just let it fix everyone's code?

That's the stated idea. Fix code before releasing to the public.

ashu1461 5 hours ago | parent | prev | next [-]

I think eventually there will be Mythos grade AI which will be released which can solve a lot of bugs, even right now opus/fable can fix more things which companies can even keep track of.

The problem is how to make sure such AI is released safely. The same AI that can solve bugs can also find bugs in authentication or loopholes in critical systems.

machinist5 5 hours ago | parent | prev | next [-]

> Most people aren't malicious. If you, as an engineer, consultant, founder, business owner, or maintainer, were given access to Mythos' capabilities wouldn't you ask it to fix your code?

1. Some do not want to use LLMs because of grave ethical concerns.

2. Some do not want to use LLMs because of copyright concerns. Google v Oracle looms large in the background.

3. You presume the outcome of Fable / Mythos is a net positive for a FOSS project. Reviewing a firehose of code written without the context of the values and considerations of a particular project shaped over years or sometimes decades of formal and informal decisions is not necessarily the best use of the maintainers time.

5 hours ago | parent | prev | next [-]
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Gigachad 6 hours ago | parent | prev [-]

I think there is some logic in delaying the rollout, giving it to the heads of the largest software products first to fix their code before dumping it on the general public. But yes eventually everyone will have this tech and it won't matter because the low hanging fruit will have all been picked clean.