Joined March 2007
2,186 Photos and videos
With PAI we have been doing Harness Engineering and Loop Engineering since July of 2025. All that blabbering you heard me spewing about: - Context is the most important thing - You need to start with your Problems, Goals, Strategies, Projects, and Challenges etc (TELOS) - It’s the harness not the model - AI is about continuously pursuing Ideal State - The Algorithm is for General Hill Climbing (making anything verifiable) - And the PAIMM defining what we’re all chasing for AI Well that’s what everyone is about to converge on. This whole “loop engineering” thing is literally mapping goals so your AI can continuously move from current to ideal state. Think of your harness as your LifeOS, not a coding tool. The irony is that my coding projects are orders of magnitude better and faster because they operate inside my harness that has all this context. You don’t need to use PAI. But please start thinking of your harness as a holistic system for understanding, managing, and improving your life and work. That’s where this stuff has always been heading.
10
8
65
5,435
Who do you trust more, the “Jan 6th was a peaceful protest” group, who knows 0 about cyber, or the company that risked everything for 2 ethical redlines? Transparent doublespeak.
I’ve had a number of conversations with folks inside and outside government about the current situation with Anthropic, and here is what I believe to be true: — As we know, Anthropic publicly released its Mythos class models earlier this week under the commercial name Fable. — Fable is Mythos with guardrails. But if those guardrails fail, then you’ve exposed Mythos and its advanced cyber capabilities to people who shouldn’t have them. (Keep in mind that Anthropic itself widely promoted the idea that Mythos was a cyberweapon and needed to be regulated as such. They asked for government regulation of Mythos and championed the guardrails on Fable. If there is a vulnerability — big or small — it is Anthropic’s responsibility to patch.) — A highly credible trusted partner of both Anthropic and the USG who was testing Fable came forward with a jailbreak of those guardrails. The Admin asked Dario to fix the jailbreak or de-deploy the model. Dario refused. — In their blog post, Anthropic defended its decision by saying the jailbreak isn’t serious. That is not what the trusted partner and the USG believe; nor is that kind of minimizing language consistent with Anthropic’s brand as the AI safety company. It’s difficult to fathom how they could claim a jailbreak allowing operability of a cyber weapon could be defined as not “serious.” — In the past, Anthropic has always said that safety must be top priority and taken super seriously. In this case, Anthropic prioritized the continued offering of the consumer model over safety. — In reaction, the Admin issued the export control. The Admin did this reluctantly. It’s been very surprised that Anthropic hasn’t wanted to cooperate with a reasonable safety request (ie fixing the jailbreak issue). Anthropic’s reaction is very much at odds with their branding and ethos as a safe AI research community. — The Admin’s hope now is that Anthropic remediates the safety issue, the export control is lifted, and Fable goes back into general release. The Admin wants all of this to happen as soon as possible. It is frankly bewildered that Anthropic hasn’t wanted to comply with safety requests that it previously said were its highest priority. — Those trying to misdirect and tie this action to the prior DoW/Anthropic issues are wrong. The Admin values Anthropic’s technical capabilities and feels that this issue, while serious, should be easily resolved. The ball is in Anthropic’s court.
4
26
3,019
I just realized @karpathy has been restricted from Mythos and Fable. Now it's serious.
7
2
87
8,709
ᴅᴀɴɪᴇʟ ᴍɪᴇssʟᴇʀ 🛡️ retweeted
this must be what the furries felt like when they took away gpt 4o
69
390
7,700
236,294
It would be extremely bad, for a number of reasons. First, it would allow this level of malicious cyber activity without needing to hide from Anthropic / OpenAI. The only constraint would be attacker skill and compute. It would enable defenders as well, but they take far longer to adapt to change. Attackers would be using it within hours of release to massively upgrade their AI attack harness / workflows. And then separately it would also be really bad for nuclear biological chemical as well. Since like Mythos it would probably just be a generally more competent model at everything. The worst part about this hypothetical is that, in my opinion anyway, and that of many others, this is a matter of when rather than if. I want to say 18 months for an estimate, but it could be 6-36 months. I just don’t see any reason to assume it won’t happen. I think the least priced-in aspect of all this AI activity, and its effect on the economy, is what happens to the market the day the government says it’s now illegal to use open source AI. Hugging Face gets taken down. AI is now like buying explosives or nerve gas. And the government is massively regulating the few commercial AI companies. Every version of a new model goes through weeks or months of government testing before release. Etc. Meanwhile…China. What are they doing? I think we’re massively underestimating how inevitable, disruptive, and potentially imminent this is. I mean I’ve been passively talking about this for a couple of years, but the government just took a model offline with a letter. I think this is way closer than we think.
I feel everyone is talking about cyber risk with very little input from cybersecurity. For people in cyber, I want your take: How good or bad would it be for cyber if an open-weight no-guardrails Mythos-level model released tomorrow?
19
5
33
7,362
ᴅᴀɴɪᴇʟ ᴍɪᴇssʟᴇʀ 🛡️ retweeted
With PAI we have been doing Harness Engineering and Loop Engineering since July of 2025. All that blabbering you heard me spewing about: - Context is the most important thing - You need to start with your Problems, Goals, Strategies, Projects, and Challenges etc (TELOS) - It’s the harness not the model - AI is about continuously pursuing Ideal State - The Algorithm is for General Hill Climbing (making anything verifiable) - And the PAIMM defining what we’re all chasing for AI Well that’s what everyone is about to converge on. This whole “loop engineering” thing is literally mapping goals so your AI can continuously move from current to ideal state. Think of your harness as your LifeOS, not a coding tool. The irony is that my coding projects are orders of magnitude better and faster because they operate inside my harness that has all this context. You don’t need to use PAI. But please start thinking of your harness as a holistic system for understanding, managing, and improving your life and work. That’s where this stuff has always been heading.
10
8
65
5,435
Ok this is just registering for me that this is the government demanding that Anthropic not allow Foreign Nationals to use Fable. So they’re not saying the model is generally too dangerous; they’re saying it’s too good for Foreign Nationals to have access. And since Anthropic can’t instantly do that, even if they wanted to, they had to disable access for everyone for now.
The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees. The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance. Access to all other Claude models is not affected. We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible. Read our full statement: anthropic.com/news/fable-myt…
96
27
364
80,198
Or….. They did the right thing by warning and not releasing. They gave it a decent amount of time for people to get ready. And then they released a safe version. Explain what you’d have done differently.
You claim for months that this was too dangerous to release due to what would happen. Then you release a bullshit version of it, and now are surprised that the stupid asses running this Administration actually believed your marketing lies and says its a national security risk letting foreigners use this... You guys are a special kind of stupid.
12
36
9,759
My mid-confidence prediction for OpenAIs next major move is a super app like Elon has been talking about forever. But basically life management. You put in all your goals and plans and projects and everything you’re trying to achieve and it basically gets full context on everything you’re trying to do so we can help you. So obviously, you can ask questions which is chat, but more importantly, it’s also agents to go and do the work for you, and for the first time it’s also an actual proactive Assistant that helps you further your goals. So basically, memory and agents and context and pursuing of goals all single system. All these pieces already existed, but in a fragmented and disjointed form. This will be unifying everything into a single sort of container and experience. That’s my guess.
2
13
2,366
Now I can’t use Fable in a different way.
As a result of a US government directive, we are suspending access to Claude Fable 5 for all users. You can continue to use all other Claude models. Here’s what this means for you: Across Claude products, new sessions will run on your selected default model or Opus 4.8, and existing Fable 5 sessions will end with an error. On the Claude Platform, requests to Fable 5 will also return an error. Please update your integrations to other Claude models. We know this is a disruption to your workflows; we appreciate your patience and support.
2
13
2,865
Can’t wait to hear the Anthropic haters explain how this is just marketing too.
As a result of a US government directive, we are suspending access to Claude Fable 5 for all users. You can continue to use all other Claude models. Here’s what this means for you: Across Claude products, new sessions will run on your selected default model or Opus 4.8, and existing Fable 5 sessions will end with an error. On the Claude Platform, requests to Fable 5 will also return an error. Please update your integrations to other Claude models. We know this is a disruption to your workflows; we appreciate your patience and support.
15
3
52
8,606
With PAI we have been doing Harness Engineering and Loop Engineering since July of 2025. All that blabbering you heard me spewing about: - Context is the most important thing - You need to start with your Problems, Goals, Strategies, Projects, and Challenges etc (TELOS) - It’s the harness not the model - AI is about continuously pursuing Ideal State - The Algorithm is for General Hill Climbing (making anything verifiable) - And the PAIMM defining what we’re all chasing for AI Well that’s what everyone is about to converge on. This whole “loop engineering” thing is literally mapping goals so your AI can continuously move from current to ideal state. Think of your harness as your LifeOS, not a coding tool. The irony is that my coding projects are orders of magnitude better and faster because they operate inside my harness that has all this context. You don’t need to use PAI. But please start thinking of your harness as a holistic system for understanding, managing, and improving your life and work. That’s where this stuff has always been heading.
10
8
65
5,435
And here’s me describing the whole system in 2016. - AI agents with our context - Our agents working on our behalf - Businesses become APIs - Automated perusing of Goals It’s all there. I did NOT predict what happened with AI in 2022. Massively surprised me just like everyone. But I knew exactly what we’d build with it once we had it. And that’s what’s happening now. danielmiessler.com/blog/the-…

1
3
1,390
Unfortunately if you calculate out what 2-5x the $200/month plan usage would be on Fable, that would probably be like $20K-$60K of token costs they incur, while only receiving $1K in return. Growing Claude Code popularity is worth a lot, but probably not close to that much.
If Anthropic put out a $1000/month tier that gets 5x the $200 tier limits and also lets us keep Fable access, I'd do it in a heartbeat.
5
25
9,378
ᴅᴀɴɪᴇʟ ᴍɪᴇssʟᴇʀ 🛡️ retweeted
🚨 Heads-up to anyone heavily in the Anthropic / Claude Code ecosystem: Fable is only in preview on our Claude Code subscriptions. After the 22nd Fable will be pay-per-token only. So find those intelligence-heavy projects and do them before the 22nd!
3
3
44
8,200
ᴅᴀɴɪᴇʟ ᴍɪᴇssʟᴇʀ 🛡️ retweeted
Updated PAI Statusline shows what Algorithm mode we're in, as well as what Intelligence level we're operating at, including the Model Name.
8
3
25
2,936
This is what I’m talking about. This is what taste is.
i hooked my whoop to my work calendar to find which coworker gives me the most stress 🚨 thanks to fable, I reverse engineered whoop to pull per minute heart rate. nd matched spikes with cal events and attendees I now have a leaderboard and I think about it daily. few info masked for obvious reasons ;)
4
4
103
30,645
It’s shocking how much time and effort you spend misinterpreting people in the name of … Twitter likes? In the last 18 months you’ve been violently for and against basically everything and everyone. You’ve rage-diluted yourself with constant bad takes that don’t match the source material.
Hi, "We must suspend procedure because of the fire we started" is exactly how Hitler seized Germany. Hope this helps. Short answer: Fuck ALL the way off.
1
1
7
2,264