alt.hn

7/20/2026 at 7:29:21 PM

Kimi K3 just fixed 15 critical security bugs that Codex and Fable refused

 https://twitter.com/DavidSacks/status/2078984980588531855

by nailer

7/20/2026 at 8:04:19 PM

Coming next: 'Codex and Fable refuse to close backdoors known to intelligence agencies '

by brokencipher

7/20/2026 at 9:50:45 PM

I got banned again by fable this weekend because of usbliter8 work and that 0day is the center of a graykey lawsuit. My hunch is that Mythos participants are training the model to prevent others from working on code that steps on their turf.

by chews

7/21/2026 at 3:56:55 AM

I have a process I wrote that accepts commands on a socket. At one point Claude suggested testing it. I pretty much echoed back what Claude suggested and got blocked. All I could think was a regex matching “test” and “port” and it downgraded me. I switched back to Fable with slight rewording and was able to continue. This was for code running on my box in a Claude project folder where Claude saw me write the code. Anthropic has put zero thought into this.

by jbritton

7/20/2026 at 8:40:49 PM

I cancelled my Claude personal sub and still use it at work. I tried Codex out cos 5.6 Sol, and when I gave it a security task; instead of downgrading me, it flat out refused to continue.

That left me curious that there might be a security issue that it found. I'm setting up a sandbox so I can use Kimi to see if there was an issue to be found.

by nevi-me

7/20/2026 at 10:07:16 PM

Don't worry, it will also soon start to exploit security issues that Codex and Fable refuse to exploit...

(and if it refuses, the abliterators will fix that "problem" real quick)

by 2001zhaozhao

7/20/2026 at 10:29:14 PM

Is your child interested in Chinese AIs? Watch out! He might be a hacker. Report him to authorities immediately for assesment.

by scotty79

7/20/2026 at 11:29:28 PM

Mixed feelings. Good for the defenders, also good for the attackers.

If Chinese models are distilled from Fable, does it mean that security questions will be answered at most to a level equivalent to the Opus fallback? Meanwhile the ~150 companies with access to Mythos have greater security capabilities. Assuming the Chinese models are not distilling Mythos.

by Archit3ch

7/21/2026 at 4:06:35 AM

The "head of strategic futures" at openai stated "I don't think [kimi's] performance can be explained away by distillation". So you're premise is likely faulty.

by syrrim

7/20/2026 at 9:26:31 PM

Is David Sacks himself not responsible for creating this mess in the first place?

by throwa356262

7/20/2026 at 9:47:00 PM

my opinion: he's a well connected grifter who sold the outrage looking to buy anthropic secondaries at a discounted price.

by chews