founder of The Thinking Company. angel investing (pre-seed @elevenlabsio, @salespatriot_, @viktor_com, @kickfinance, @Wordware_ai, and many others)

Joined March 2008
Bartek Pucek retweeted
@levelsio
@levelsio3h
🇵🇱 Okay my final Poland video because we're leaving soon! It was really fun and we had a great time I liked Warsaw most to be honest, a very modern city, a bit like East Asia in terms of modernity, with rapid delivery services and apps, everything just works great and fast I'm not saying it's perfect btw, there's moments where you still realize it's Eastern Europe (or as they'd like to call it Central Europe) but then the difference is they generally solve problems fast and pragmatically Many shops you go will actually have a long line at the checkout, annoying, but usually there's a second checkout but it's closed That's because Poland too has a big labor shortage, one of the lowest fertility rates in Europe, so they too kinda have to import people, but they choose to import them from Ukraine and Belarus (and some South Asians actually too) But wait, so that checkout line is closed yes? I'm so used to Portugal where there is zero incentive to then open another checkout counter but in Poland usually within a few minutes they notice it's busy and open another counter. I know, basic stuff but hard to come by these days. They're fast and pragmatic Ordering flowers for my gf was easy, the flower shop has an IG (but I don't) so I msg them over Whatsapp, they immediately respond, give me some options, I say what I want, address, payment link with Stripe (!) and done delivered at my hotel by a nice guy. All soooo smooth. Fast response, friendly people. Things just work here! Poland has done a great job keeping bad immigrants out while bring good immigrants in. The Ukrainians and Belarussians are neighbors and their cultures overlap strongly with Poland. So they fit in easily. Same cultures, same religions, same routines etc. for the most part A young Polish Uber driver I talked to said to him Krakow (his city) looks just like Lviv in Ukraine, so it's easy for Ukranians in Poland to integrate There's a lot of police presence in places, and military vehicles also (probably cause of the Ukraine war), the security at the Warsaw Airport is not done by some 5 layer outsourced company with staff that hates you, but by friendly people from the Polish Border Guard (Straż Graniczna) wearing military uniforms Warsaw has lots of skyscrapers now, and actually the tallest in Europe now at 310 meters is the Varso Tower, crazy! Poland is a booming economy and growing fast. When you're growing of course it's easy to make things go well. I'd say it's important for Poland to look ahead carefully and don't make the same mistakes that Western Europe did when everything was going well and we were very rich We became complacent, stagnant, added regulatory burdens, became overly obsessed with climate change and the environment, and imported the lowest quality tier of people from cultures that hate our guys and are diametrically opposed to Western culture That last part is especially interesting considering Poland's history, where 6 million (!) or 20% of the country was ruthlessly murdered in World War II I think that gives them the power to not have to be politically correct about immigration like Germany, because Poland after all was the victim, while Germany then was the purpetreyor. Which is why Germany does have to be so politically correct about it, due to extreme historical guilt You walk on the streets of Poland in the day and at night and you see the difference what sane policy does to daily life We're all dealing with the echoes of history So my message to my Polish friends: don't make the same mistakes Western Europe did and you will soon be the richest, safest, most modern country in Europe and hopefully then have the power to be the new leader of Europe And maybe you can then save Europe as a whole!! Niech żyje Polska! 🇵🇱
@levelsio
@levelsioOct 18
🇵🇱 Warsaw is Poland's biggest city and it is completely safe at 1am at night No violent junkies, no drug dealers, no street thugs hanging around harassing women (and men), no pickpockets (nor in the day btw) No shady people hanging around the train and metro stations Just people living chill together and police enforcing safety You know like we used to in Western Europe? There's a lot to learn from Poland
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Bartek Pucek retweeted
Exciting update! We've hit $50M in annualized revenue. After just 7 months! BUT we're not even 0.002% into our mission. We're just getting started.
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Bartek Pucek retweeted
EA AI safetyism increasingly looks like Marxism-Leninism for the algorithmic age. The old vanguard claimed privileged knowledge of the inevitable course of History. The new one claims privileged knowledge of the probabilistic course of Humanity. Both use an elaborate intellectual framework to reach the same political conclusion: a small group of enlightened people must constrain everyone else for their own good. That has never lead to anything except monumental human suffering.
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Bartek Pucek retweeted
Today, we're introducing @lato_ai, backed by @ycombinator. We are changing how investments are made. Our first focus is commercial due diligence (CDD): currently private equity spends on a McKinsey report ~$500k which takes weeks. To give you the scale: 36k CDDs were done in 2025, which is c.$18bn spent a year. Based on 200+ experts calls and multiple studies over last 4 weeks our agents did, we know that: 1) Voice agents do better expert calls than people 2) Research agents find more relevant information and synthesise it systematically With our approach we do research on any company or market in days at a fraction of the cost. We already work with leading funds that push the frontier. Learn more at latolabs.io or email [email protected] to get in touch.
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Bartek Pucek retweeted
Marc Andreessen 🇺🇸
@pmarcaJun 13
If, when you say regulation, you mean the dead and clammy hand of the commissar—the gentleman who has never in his life built a single thing, drafting rules to govern a thing he cannot define, to be enforced by men who cannot read them; if you mean the form in triplicate, the impact assessment upon the impact assessment, the compliance officer who breeds, in the warm dark of the org chart, further compliance officers unto the third and fourth generation; if you mean the moat—the deep cold moat that the giant digs around his own castle and christens, with a perfectly straight face, public safety—the drawbridge he hauls up behind himself the very instant he is across, lest any hungrier and hungrier man should follow; if you mean the precautionary principle, which, had it governed our grandfathers, would have banned the wheel pending further study of the hill, and left us yet shivering and raw in the mouth of the cave, blessing its excellent ventilation; if you mean the European disease—that magnificent open-air museum of a continent, which produces in our time precisely two things in great abundance, and they are regulation, and the eloquent and well-footnoted regret of cultivated men explaining at length why they have produced nothing else; if you mean the license required to think, the permission slip for honest arithmetic, the king’s wax stamp pressed upon the forehead of every new idea before it may draw its first breath; if you mean the agency dispatched, with trumpets, to slay a single dragon, which arrives at the cave, surveys the accommodations, and moves in—and spends the ensuing century laying eggs and devouring the very villagers it was sworn to defend; if you mean the startup that perishes not of the market’s honest verdict but of the filing fee, the genius decamping by the next tide to a freer and warmer shore; if you mean the law that arrives, faithful as the swallows, exactly one whole epoch too late—helmeted, plumed, and magnificently armed—to regulate the stagecoach—then certainly, my friends, I am against it. But—but, my friends—if, when you say regulation, you mean instead the humble steel guardrail upon the mountain road at midnight, the very thing you curse on the easy days and bless on your knees the one night the fog comes down; if you mean the brakes—for it is the brakes, and not the engine alone, that permit a sane man to drive fast and yet arrive alive—and the buttress, without which no cathedral was ever flung so high, but only in spite of which, but because of which; if you mean the meat inspector, who is the single homely reason a man may eat a sausage in this republic without first composing his last will and testament; if you mean the firebreak cut clean through the forest before the dry season of the burning, the smallpox cordon, the buoy that marks the channel, the rule of the road that lets ten thousand strangers hurtle past one another in the dark at fearful speed and arrive, by its quiet grace, every one of them home; if you mean the honest scale and the true weight, the reason a pound is a pound and a dollar a dollar from Natchez to Nome; if you mean the firm and decent wall between the counterfeit voice and the widow’s bank account, between the deepfaked candidate and the ballot box on the eve of the vote, between the loosed and loveless machine and the schoolyard it neither knows nor pities; if you mean the simple plank of law that says the strong shall not, in the gray dawn, feed the weak quietly into the furnace and sell the rising smoke as progress; if you mean, in the end, the one slender thread of trust without which no citizen will ever dare to use the marvelous thing at all—for where there is no rule there is no trust, and where there is no trust there is no commerce, and a miracle that no man dares to touch is no miracle, but only a handsome and expensive ghost—then certainly I am for it. This is my stand. I will not retreat from it. I will not compromise one inch of it.
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Bartek Pucek retweeted
Everyone who over-hired or lowered the bar too much in the 2021-2023 wave, or isn’t growing as fast as budgeted, now pretends they’re laying people off “due to AI productivity.”
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Bartek Pucek retweeted
One of the cleanest and most beautiful European cities I’ve been to. The energy is electric here. ⚡️ – at Warsaw, Poland
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Bartek Pucek retweeted
Y Combinator
@ycombinatorMay 26
TesterArmy is the simplest way to QA your website or mobile app. It runs real tests across browsers and devices, catches regressions on every PR, generates tests from natural language, and much more. Try now and start testing in minutes: @TesterArmy
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Bartek Pucek retweeted
What was the most important transition in human history, the thing that most drastically altered our species' way of life? David Reich's lab has found evidence pointing to a new answer. There are two standard candidates: 1. The shift from hunting and gathering to farming, around 10,000 BC. 2. The Industrial Revolution, around 1800 AD. Here's one way to adjudicate this: When a species' environment changes drastically, natural selection accelerates, because the species has to catch up to adapt. So the biggest transition will have happened in the period with the most rapid natural selection. What David's lab has found is that the period with fastest natural selection wasn't 12000 years ago, and it wasn't our modern period. It was the Bronze Age, about 5,000 to 2,000 years ago. What was it about the Bronze Age that changed humans so profoundly?
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Bartek Pucek retweeted
one of the most refreshing things on the planet is talking to someone who just *gets it*. like you don’t need a preamble, & you don’t need to articulate the shape of the thought before you can share it cuz they just meet you where you already are. as if they skimmed your mind & married to the culture before you say a single word. these people are rare, & conversations with them are incredible because you skip the surface layer entirely & land in the depth almost immediately. they’re the best ppl to riff with, ideate with, & think forward with.. the bandwidth is wide & already open. this is true for any type of relationship.
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Bartek Pucek retweeted
Proactive agent that thinks and acts like you. Multiplayer AI Brain for teams. Proper GUI for commanding 50 agents. Sauna.ai is all three. Sauna goes live today. First 2000 people, use access code LAUNCH for $80 of weekly(!) credits. Let’s explain. Multiplayer only works once the personal brain is powerful. So let's start here. Personal AI Brain 3,800+ tools connected. State of the Art memory. Skills and schedules you teach once that get repeated forever on cheaper models. An AI first CRM. Lives on the cloud so you can initiate tasks from anywhere: iMessage, Slack, Email. Also no need for a Mac mini 😉 GUI AI agents have been stuck in their MS-DOS era. A chat box, a scroll buffer, no way to command 50 of them. We built the first GUI: Live sessions on one side, work waiting for your sign-off on the other, plus the things Sauna kicked off while you were asleep waiting for review. Game mode helps clear the queue with actual joy. Okay so far so good, but how to give benefit of what you built to more people or whole team? Multiplayer Once your Sauna actually knows you and you gave her access to your tools, you can use multiplayer. Two modes: - Brain access. My co-founder Robert plugged my brain as a tool into his Sauna last month. He can ask it about pricing while I'm in other meetings, gets a sourced answer back, never has to interrupt me. That’s read only. Yolo mode gives him access to all my tools too :O - Communal Saunas extend that to whole companies with proper permissioning. Folder owners decide what's true for the whole company and build skills. Most get their personal brain + read access to communal files and memories. Works also for group planning my best friend's bachelor party. The Way I’ve been obsessed about AI Brain since 2016. Our human brains suck at some things like memory and are brilliant at others like creativity. We are also particularly bad at thinking we are all on the same page and then realising weeks later that we weren’t. Most leaders spend their days being the human diff tool, catching contradictions in hallway conversations and Slack threads. Repeating themselves 50 times. Now every company is spinning up hundreds or thousands of agents that drift faster than humans do, feeding each other their drift as context. Compounding rot. After 10 years and one failed company in this space we are launching the solution. The Launch We thought about a celebrity launch. Margot Robbie in a bathtub explaining agents. But then we realised the same money gives the first 2,000 people free daily credits, every day, until we burn through that $1,000,000. Sauna runs Claude, GPT-5, Gemini, GLM-5.1, DeepSeek, Kimi so you can budget yourself. The labs are racing to lock you so they can milk you in a year. We picked your side. Onboarding It’s live at app.sauna.ai We’ve preheated saunas based on a niche. Use the access codes in the comments to get a better experience.
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Bartek Pucek retweeted
Teortaxes▶️ (DeepSeek 推特🐋铁粉 2023 – ∞)
@teortaxesTexApr 29
Poland has made like half of core OpenAI researchers strongly bullish on Poland (and goblins) I think Poland might be more valuable than NVidia The trick is to keep that value in Poland
Like, think about it. 100 years from now what will Poland have done for you? This is basically an IQ test.
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Bartek Pucek retweeted
Marc Andreessen 🇺🇸
@pmarcaApr 28
The AI we thought we’d get was bloodless alien machine intelligence. The AI we actually got was the complete knowledge and culture of our civilization reflected back at us. Of course we will love it deeply.
I studied the anti-modern authors who are skeptical or even critical of reliance on technology for relief of man's estate, and I know the alternative presented by classical political philosophy; yet I must not have tied myself to the mast because the AI siren song does move me...
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Bartek Pucek retweeted
Every one of our Summits has had a special element about it - and we are proud to bring this one to Warsaw. @dabkowski_piotr and I grew up together in Poland, and the original idea for @ElevenLabs came from watching films with Polish voiceovers - the lektor that so many of us know. Fast-forward to today, and we have an incredible team in Poland across research, product, and go-to-market, building for users and companies around the world. So much of what is happening in the region deserves a bigger stage. Our customers here and across CEE are leading with ideas, building ambitious things, and showing what Europe can create with incredible talent across. And Poland is now a G20 economy after 35 years of incredible growth. That is a big part of why we’re bringing the Summit to Warsaw: to celebrate that momentum and showcase what we’re building across Poland, Europe, and beyond. We’re hosting it at Teatr Wielki, home of the Polish National Opera - a venue built to show what voice can do - on the 1st of June. It feels like the perfect place and time to talk about what’s next for AI voice and agents. summit.elevenlabs.io/warsaw?…
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Bartek Pucek retweeted
The world of software leaps forward right now _by the weekend_
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Bartek Pucek retweeted
We asked ElevenLabs CEO Mati Staniszewski what people should take away from the story of ElevenLabs. "One is culture." "We obsess about bringing people that are aligned with how we want to operate day to day, whether it's the ownership, whether it's the first principles, whether it's that striving for excellence, but keeping the ego low." "The second thing... you want people that are great in their craft and are passionate about their craft, passionate about that work." "If you bring people like this, there's actually very little management and very little work that any of the leaders need to do." "Bring the amazing people that are obsessed about doing the best work of their lives... and they'll do a much better job than you ever imagined." @matiii
ElevenLabs started as a weekend project. They crossed $330M ARR in 2025 as they build the voice interface of the future. This is the ElevenLabs story. An a16z Original.
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Bartek Pucek retweeted
ElevenLabs growth: - 0->$100M ARR: 20 months - $100M -> $200M ARR: 10 months - $200M -> $330M ARR: 5 months All powered by incredible customers - and their impact.
We closed 2025 at over $330M ARR - driven by our customers’ trust and impact. @matiii joined @Bloomberg earlier today to talk about the work we do with enterprises, our recent research release, and what’s next.
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Bartek Pucek retweeted
A massive new study on peak performance included 34,000 international top performers: Nobel laureates, renowned classical music composers, Olympic champs, and the world’s best chess players. It shows early specialization is a trap, and the road to greatness is long and varied.
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