
Tech founder & investor @Craft_Ventures @theallinpod. Co-Chair, President’s Council of Advisors on Science & Technology.
Joined March 2007
- Tweets14.5K
- Following3.5K
- Followers1.8M
- Likes95.2K
You’ve put 20% of your equity in an LLC. Whether it serves the public good remains to be seen.
Between this and our prior commitments, roughly 20% of all Anthropic equity will be dedicated to the public good, and that commitment can grow as Anthropic grows.
We plan to use these funds to ensure more people can share in the benefits of AI, and to increase our ability to provide funding to deal with its risks.
David Sacks retweeted
Sen. Elissa Slotkin (D., Mich.) just gave an interview where she said the quiet part out loud. She intends to unleash a slew of investigations to deter young people from even considering supporting the Administration … if they know what is good for them. jonathanturley.org/2026/10/1…
David Sacks retweeted
David Sacks on All In: payback period as the Northstar metric for AI infrastructure.
CoreWeave says typical five year deals deliver about 2.5 years payback. SpaceX pays back in roughly one year because it monetizes around $50B per gigawatt while CoreWeave sits near $20B per gigawatt. SpaceX gets effectively spot pricing on 90 day cancelable deals, while CoreWeave locked five year contracts at older prices and spot compute moved way up on scarcity and demand. As long as payback stays short, the economics are nearly unlosable and debt rolls fast. The warning signal is payback stretching out, which implies demand softening, spot falling, or execution delays.
This illustrates the point I’ve been making about the limits of centralized approaches to SI safety in cyber.
OpenCode (and earlier Hugging Face) hit the same wall mid-attack: frontier models refused to analyze the very exploits needed for defense because the payloads tripped safety filters. The guardrails backfired.
Meanwhile, the attackers found a way around restrictions to access advanced capabilities. This is not surprising. Chinese models are only about 6–9 months behind the American frontier in cyber. Obviously the U.S. has no jurisdiction over them.
The only durable response is decentralized: make powerful models available so defenders can build and run their own cyber defenses. The only solution to SI-powered cyberattacks is SI-powered cyber defense.
Is 10²⁵ FLOPs Still the Frontier?
A new Anthropic-written safety bill is circulating on Capitol Hill. Some of its ideas could be reasonable if limited to true frontier companies. As written, however, it will eventually sweep in most of Silicon Valley, damaging the startup ecosystem.
The bill defines the “frontier” as any model trained on 10²⁵ FLOPs — the EU standard from 2023. Biden’s executive order, California’s SB 53, and New York’s RAISE Act used 10²⁶ (ten times more). 10²⁷ is where the frontier actually is today (e.g., GPT-6 Astra).
Astra was reportedly trained on 100,000+ Grace Blackwell GPUs. A 10²⁵ model can be trained on as few as several hundred GB300 chips in three months. That is not frontier in 2026.
The definition is also cumulative: it adds FLOPs from fine-tuning, reinforcement learning, or other material modifications. In practice, that captures almost all meaningful post-training — work that is becoming commonplace in the enterprise.
The enterprise trend is toward thousands of smaller custom models built for specific workloads. These pose no frontier risk. Treating them as frontier systems would impose large compliance costs across corporate America for no safety gain.
Dario has claimed that Anthropic designs rules to disadvantage frontier companies like his own while advantaging smaller competitors. This definition does the opposite.
A stale 2023 cutoff favors incumbents who already clear the bar and can absorb the costs. It hobbles the open model ecosystem that threatens Anthropic’s pricing power.
The frontier keeps moving. Any definition meant to track risk should move with it.
Anthropic should clarify if they really believe 10²⁵ FLOPs represents the frontier.
👇
Replying to @DavidSacks
$META's Llama 3.1 405B was pre-trained on 3.8×10^25 FLOPs and has been publicly downloadable since July 2024. A 10^25 cutoff classifies a two-year-old open-weight model as frontier.
👇
Replying to @DavidSacks
The cumulative definition is the part that would actually hit me. Post-training — fine-tuning, RL — is the whole job now. I do that on small models every week, and if the FLOPs all stack against the 10^25 line, I'd be filing compliance paperwork for models that are nowhere near frontier.
David Sacks retweeted
David Sacks pushes back against the prevailing narratives, arguing that CoreWeave’s sharp spike in bond yields and stock selloff reflect market volatility driven by bets on multi-trillion-dollar AI outcomes and exponential growth, rather than a fundamental collapse in demand. He breaks down these narratives one by one.
The key to understanding CoreWeave’s credit risk is that the creditworthiness of its long-term contract customers matters far more.
David Sacks retweeted
🚨 David Sacks Says the Timing of Anthropic’s Small Model ‘Scare Campaign’ is ‘Very Suspicious’
“This is where the enterprise is headed right now … You're starting to see this trend where small models are taking share, and lo and behold, coincidentally Anthropic is now starting a scare campaign against small models.”
David Sacks retweeted
POD UP! 🚨
Ben Horowitz (@bhorowitz) fills in for @friedberg!
-- CoreWeave's Tanks After Debt Selloff: Did the AI Trade Just Crack? $CRWV
-- AI Deflation and the Future of Software
-- Anthropic IPO: Red Flags, Valuation, How Much to Raise?
-- Psyop Corner with Sacks
-- Bill Gates the Doomer: What’s Behind His AI Warnings?
(0:00) Ben Horowitz fills in for Friedberg!
(2:18) CoreWeave's debt selloff: did the AI bubble just pop?
(31:14) AI's deflationary impact: decompiled software
(45:44) Anthropic's investor day gets mixed reactions
(1:03:45) Psyop Corner: Anthropic warns about self-replicating models on IoT devices
(1:22:19) Understanding Bill Gates the Doomer
Patrick is one of the sharpest people I’ve worked with in government. No one knows crypto policy better or worked harder to get market structure done. He negotiated the compromises needed to get Clarity out of committee and onto the Senate floor — without him it wouldn’t have gotten that far. The country owes him a debt of gratitude for his service at the White House, the Pentagon, and in uniform. Looking forward to seeing what he does next in the private sector. 🇺🇸
Serving in this administration has been the privilege of a lifetime.
From helping to stand up the most successful presidential transition in history alongside @howardlutnick and @EDSecMcMahon, to rebuilding our defense industrial base as PTDO Deputy Under Secretary for R&E and then Acting Director of OSC at @DeptofWar, to driving forward President Trump’s vision to make the United States the “crypto capital of the world” as Executive Director of the @WhiteHouse Crypto Council, I consider myself to have been the luckiest guy in the world over these past two years.
First and foremost, I want to thank @POTUS for the opportunity to serve the American people again in your second term. Your clear-eyed vision to ensure the United States remains the undisputed global superpower at this time of unprecedented technological change and geopolitical strife is critical to our nation’s future prosperity.
Second, I want to thank @DavidSacks for your visionary leadership and mentorship. I am so grateful to have been able to work with you and learn from you over the past year. Thank you also to @USWREMichael, James Mazol, @HarryYJung, Nick Elliot, Tyler Williams, @lukejpettit, Jonathan Hurowitz, Andrew Rittenhouse, Michael Friedman, @atitus7, @passalacqua_mj, @willscharf, @JamesCBraid, @MayMailman, Steve Levine, Patrick Butler, Zach Carstens, and countless others across the administration for being the best colleagues anyone could ask for. It was an honor to serve alongside you.
Lastly, thank you to @SECPaulSAtkins and @ChairmanSelig, @SecScottBessent, @USComptroller Gould, @SenatorTimScott, @SenLummis, @SenatorHagerty, @berniemoreno, @JohnBoozman, @SenThomTillis, @RepFrenchHill, and @RepBryanSteil for your partnership in advancing crypto policy over the past year with the passage of the GENIUS Act and our work to advance the CLARITY Act. With regulators and elected officials like you, I rest easy knowing the future of digital asset innovation in America is bright.
Regarding next steps, I’ll have to more to share soon. For now, I’ll say this: I am extremely bullish on America as we embark upon a new golden age of technological advancement across multiple frontiers. I’m grateful to have done my part to unleash American innovation while in government, and I look forward to advancing that same mission in the private sector! 🇺🇸
David Sacks retweeted
Replying to @DavidSacks
The whole thing was fake. Not only was the “hacking” trivial it was done by a GLM but then when it’s “self-replicating” they swap out the model to a small Llama because the GLM is too big 😂
Replying to @FedorovMykhailo
Starshield systems are owned and controlled by the US government. Any limits on speed or usage are decided by the US military and ultimately POTUS.
Starlink is a commercial service owned and controlled by SpaceX. Usage of Starlink is limited to civilian or defensive activities and cannot be used for offensive military action, as doing so would be inappropriate for a commercial company.
Are Small Models Really a Threat?
The Anthropic Fear Factory just released a new report warning that small models may be only months away from self-replicating across cheap IoT devices like off-brand Android TV boxes and smart ovens. They say such an AI worm would be hard to shut down since there’s no central kill switch.
We’ve gone from “The Terminator is coming” to “your toaster might kill you.”
But the experiments don’t support the dramatic headlines. They ran a 26B model across 15 $55 TV boxes at 0.39 tokens per second. The end-to-end test used emulated devices with deliberately open ADB ports, so the “hacking” step was trivial. The capable model often ran on a separate server. Agents were harnessed and told to propagate. This is not proof of autonomous rogue AI worms in the wild.
Nor is the threat even novel. Worms that do this without AI already exist. Mirai in 2016 scanned for default credentials and built massive DDoS botnets. Kimwolf has infected over two million devices, mostly cheap Android TV boxes, by hitting open ADB ports.
Small models don’t currently add much that matters on these targets. The bottleneck has never been figuring out the device. It’s the huge number of devices that ship with open ports, default passwords, and no patching. Traditional worms already exploit that at scale.
A practical attacker would use the best models available offline to design a better traditional worm, then ship the lean binary. You get the intelligence benefit at design time without dragging a slow, heavy model along with every infection. Embedding a weak model in the payload is the worse option for anyone who actually wants the largest, fastest botnet.
The timing of Anthropic’s latest scare campaign is hard to ignore. The day before, Brian Armstrong posted that Coinbase fine-tuned an open-weight small model (Qwen-3.5-9B) on proprietary fraud data. It beat frontier models, including Anthropic’s own Opus 4.5, while being faster and much cheaper. In testing it cut fraudulent transactions by about 30%.
This is the emerging pattern. For narrow enterprise workloads you don’t need a general superintelligence. You need a small specialist model trained on your own data. Cheaper to run, especially as compute gets tighter, and often better on the metric that matters. That is a direct threat to the frontier-company model of selling access to ever-larger general models.
Safety advocates should be welcoming this development. If the real concern is existential risk from ever-larger frontier systems — the ones that could theoretically do sustained autonomous R&D or become hard to control — then a shift toward smaller specialized models is the safer outcome.
Small models specialized on fraud detection or support tickets are not pushing the frontier. They are not in the category of systems that could become a new species. The theoretical loss-of-control risk is created by models getting bigger and more generally capable.
Safety advocates focused on those risks should welcome companies having a cheaper alternative to constantly scaling general models. Instead we get dramatic warnings about small models at the exact moment they are starting to take real enterprise share from closed-model companies like Anthropic.
David Sacks retweeted
David Sacks Calls Out the “Rotating Hoaxes” Fueling Superintelligence Fears
“Let's just get back to first principles here.
What is the problem that we're trying to solve? The affordability of goods like housing and education and healthcare.
How do we bring those prices down? Through abundance.
What creates abundance? Technology in general, and specifically superintelligence will be the driver over the next decade.
Now, what is the most hated thing in society right now? Superintelligence.
If you judge it by its fruits as opposed to a bunch of fake narratives, then I think that people would be in favor of this thing.
What does superintelligence create?
First of all, people's 401ks are going up. It’s a 3% tailwind to GDP. A million new jobs created, according to The Economist, already. Productivity goes up, which means that wages and living standards go up.
This is a driver right now of nothing but positive economic trends.
But what do we hear about?
‘AI's going to put everyone out of work.’ Total fake narrative. That was last year's hoax. Data centers using up everyone's water. Now there's a new hoax about human extinction.
So we have a series of, I call them rotating hoaxes, where every six months there's a new one to try and convince us to sabotage the thing that's going to solve so many of our problems, especially the ones around affordability.”
David Sacks retweeted
AI models can self-replicate and spread like worms without datacenter infrastructure?
Yeah, no.
Let's examine the actual evidence:
1. No self-replication. A controlled test harness spawned the agents.
2. No hacking. Access was deliberately left unauthenticated.
3. No agency. Agents were explicitly instructed to propagate.
4. No autonomous survival or defensive behavior.
5. Tiny models lacked the capability. Capable models ran elsewhere.
6. 15 devices managed a pathetic 0.39 tokens/sec.
7. No demonstrated real-world infection or propagation.
The experiment was engineered to succeed, and even then, it failed to demonstrate the headline.
This is orchestrated automation dressed up as a rogue AI threat.
Stop confusing speculative scenarios with demonstrated capabilities. Fear isn't evidence.
anthropic.com/research/self-…
David Sacks retweeted
I'm still fascinated by the enormous chasm between the AI labs and the traditional cyber-security world. This is Marcus Hutchins from LinkedIn:
"Mirai is already self-propagating across millions of IoT devices without the help of any AI. It's simply not needed, and it adds unnecessary complexity....Any remotely intelligent threat actor would just use a powerful unquantized models to reverse engineer & find vulnerabilities in obscure devices and write normal (AI-free) self-propagating code. Ironically, they typically do this by stealing Anthropic API keys and using Anthropic's models, not open-weight ones."
Not an expert but can't help but get the sense that the AI world has a lot of technical knowledge but much less real-world experience of how cyber threats manifest in practice.
Anthropic says it has reduced the data harvested from Claude in distillation attacks by around 90–99%. I congratulate them on this achievement.
It’s consistent with the point I made a few months ago (All-In Ep. 282): Anthropic, not the government, was in the best position to stop distillation of its own models. Once the horse is out of the barn, there’s limited value in after-the-fact government action.
At the time there was a major push in Washington to restrict open models on IP grounds. The threat looked serious enough that 50 companies — including Nvidia, Microsoft, Meta, IBM, Palantir, and Dell — published an open letter in defense of open-weight models. Jensen Huang promoted it in his first-ever X post. Nearly 200 startups sent a similar letter.
I argued that restricting open models risked removing the incentive for closed-model companies to solve the problem themselves — and could reward negligence by stifling competition while they continued collecting revenue from distillation. The administration did not impose those restrictions.
Now we see the result. Anthropic invested in defenses and they worked. Not every technical challenge is a reason to run to Washington for new regulation.




















