Hexa

Today at the Hexa Hacker House, we sat down with unicorn founder Nicolas D’Audiffret (founder of Ankorstore). Nicolas, who’s currently staying at the house with the other founders, shared his advice for first-time founders: when to start, how to run a startup, and why SF is the place to be.

Meet @pibou_dev, the first of our 11 founders currently at the Hexa hacker house in SF. Pierre just completed his PhD at MIT, where he worked on the future of work, and is now building in stealth in that space. Follow us for the reveal of the 10 other founders.

Surprise for our founders at the OpenAI x Hexa Summer Hacker House: Marie, our chef, to make sure they only have to focus on building!

👇 Why you should be building with other founders This afternoon we were preparing a cold call session. We coach each other and improve our pitch. Doing it together feels like a fun game, not like a task you have to do. We can see what works for each other and how each persona 'reacts' to the call. Another experienced founder walks into the room and shares the script with which he was booking 10-15 demos a week. Damn. He got it from a sales performance firm that he was probably paying $2k per month. We get it for free, exactly when we were about to start our calls. Do you think you experience this when you're building in your room? Hell no. The environment is everything. Like the harness. Thanks @joinhexa! Thanks partner in crime @ventiph! #founders #coldcall

Breaking frontier models to do security research. 👾 This is a Saturday in Hexa's Hacker House. 🇺🇸 @joinhexa @ClaudeDevs @pibou_dev @elder_plinius

New experiment: Cold plunge pitches, ideally under a minute 😂 @AlchemySprings @hugues2047 cooking up crazy ideas @joinhexa house

Day 1 of the @joinhexa hacker house in SF Around me, unicorn founder, exited founders , YC alumni, founder of a research lab at MIT Lot of things are going to happen here @KhraminaDianka @ventiph @ThibautRegerat @pibou_dev @gegatsur @snoelso @odyssey_s121 @GeeraertE @hugues2047

Day 1 at the @joinhexa house in San Francisco. 🇺🇸 Hexa put a group of European founders together for the summer. They bring the house, network, and credits, and ask that we ship, share, and move fast. I'm building Enoki, the defense system for your AI app.

Day 1 of the @joinhexa house in SF! An amazing team of builders & technical founders. We started the week with a lot of good news. In the cohort, we have: - Unicorn founder - Exited founders - YC alumni - Founder of a research lab at MIT Stay tuned! LFG 🔥 @bawstos @ventiph @ThibautRegerat @pibou_dev @gegatsur @snoelso @odyssey_s121 @GeeraertE #hackerhouse #sanfrancisco #building #founders #ai

Cooking from @joinhexa house in SF! Testing the limits of Fable 5

@steipete DM-ed! You're welcome at the @joinhexa house in Cole Valley, we're 10 builders there

Beginning of the @joinhexa summer hacker house in SF !! Crazy founders in the room for a month: - raised a $20M seed with his last company. - MIT researcher; sold several e companies before this. - exited YC alumni, now back at it ... Lets builds 🔥

Me and @odyssey_s121 are in SF building @getsault, now an SF HQ'ed company and meeting people around token spend and agentic commerce. If your agents spend money, or your token bill is becoming a real line item, we want to see how you handle it today. We're building for exactly this, and the messy real world setups teach us more than any deck. Home base: @joinhexa a full room of builders, exactly the right setup to challenge/help each other.

@GeeraertE Tic tac⏰

D-4 : The house Why I am speaking like I rap? Teaser from the Hexa House in SF

A full house at the @joinhexa office in Paris yesterday. Our CTO @olivierteboul joined the discussion by sharing why low latency matters for voice agents and how Gradium models support enterprise use cases for voice AI.

⌛ 48 hours. That's all the time left to apply to RAISE the STAKES, the world's largest AI startup competition. The AI landscape is flooded with noise. We’re building for the 1%. With an acceptance rate below 2.5%, RAISE the STAKES brings together the founders bold enough to redefine the next decade of AI. Here's what they walk into: an arena of high-density capital, cutting-edge infrastructure, and enterprise buyers at scale with some of the most influential investors in AI watching every pitch, live. Our Track Sponsors leading the way: @Backblaze · @GoogleDeepMind · @GoogleStartups Our Premium Sponsors powering the stack: @CrusoeAI · @Modal · @get_Hydrahost · @TrustVanta · @SUSE · @Mozilla · @Grafana And our Partners and Judges in the room: @Joinhexa· @PartechPartners · @Elaia_partners · @KimaVentures · Pioneers · @Ewor_official · @Accel · @Dealum_ · @PSG_inside · @NVIDIA · @Headlinevc · @msft4startups The clock is running. This isn't a demo day. This is the arena. 🔗 Link to apply: hubs.li/Q04ksfQB0

SF wrap up, some random takes to give you a flavor: 🤖 As usual, I show up feeling decent about my AI game. First conversation in and I realize I'm playing in League 2. 🚖 Self driving cars, total mindblow. Had no idea we were already there. 🚕 Hundreds of @Waymo cruising around, a few @zoox too, it's become the default way to get around. 🚗 @Tesla on full FSD, you hit go from your underground parking and your car parks itself 45 minutes later somewhere out in the Marin Headlands backcountry. 🇫🇷 French scene still strong, big community, rooftop party and BBQ at @joinhexa House, great vibe. 🧥 Sunny but the air is freezing. SPF 50 at noon, by 6pm you're pulling on your third fleece. 🎾 Padel is landing hard. No squad at the level yet but it's coming ;) Squash players better watch out. 🧃 Kingdom of kombucha and functional drinks, you hide to sip your glass of wine. 🧠 Obviously AI talk from every angle. Everyone defending their LLM, Gemini vs Claude vs OpenAI, all at each other's throats. 🏔️ Outdoor scene is wild. Sports Basement on Saturday morning renting skis, snowboards, crampons, MTBs, gravel bikes, everything for 150 miles around. 🤝 Founders still humble and welcoming. One or two French douchebags inevitably. 🌉 SF is on fire, good to see. Buzzing, drinks on terraces, less crack, more joy. ✈️ Would I come back? Absolutely. And soon. ⚡️ A few surprises in store. thanks for the welcome 🙏 @romainhuet @pbetouin @nicbstme @byAnhtho @hthieblot @JeanLafleur @alexeichemenda @mehdidjabri @ludoulrich

11 hours, 100 hackers, 5k in prizes in the heart of Paris. We gave everyone unlimited use of Pioneer to fine-tune and deploy their own small models this weekend. The Pioneer challenge winners fine-tuned GLiNER2 to extract medical entities from transcribed patient records and clinical transcripts for an AI-assisted clinical workspace that helps doctors capture, structure, and complete patient consultations. Huge thanks to @techeurope_ for organizing, @joinhexa for hosting. Next stop → Munich. Dates coming soon.

Come hack with @fastinoAI in Paris next weekend. 🥐 When: Sat, May 16th Where: @joinhexa Headquarters Who: @techeurope_ @GradiumAI @OpenAI Limited to 80 builders, so apply now :)