@arcalinea

Founder & Chief Innovation Officer @bluesky Building @Attie_AI

Joined August 2012
Jay Graber 🦋 retweeted
Flow has raised a $50M Series B at a $750M valuation, co-led by Antonio Gracias (Valor) and Gavin Baker (Atreides) with Sequoia Capital, Roelof Botha (SpaceX, Block), and more. When I became a mechanical engineer, I wanted to invent. In reality, 90% of the day to day execution work (CAD, excel, sim) was digital manual labour. That’s about to flip. The engineer’s role will change more profoundly than at any point since the invention of CAD, with humans focusing on invention, architecture, tradeoffs and judgement calls, and agents taking the grunt work. Anduril, Joby, Stoke Space, Rivian & many more - Flow is now the default platform for requirements and verification for frontier hardware teams. But it’s not just next-gen anymore. Industry giants including General Motors PPU and Volkswagen & Rivian’s joint venture (RV Tech) are reshaping their core development practices with Flow’s AI. The revolution is just starting. Models are getting better quickly at CAD, analysis, simulation, and tool use. In the next year, AI will move from integrating the work to doing the work. One day, this shift won't just enable us to iterate faster, it will enable us to design a class of products that we could not have dreamt of before. We’re hiring.
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ai ea e/acc p(doom) singularity slowdown arms race cyberwarfare drone swarm x-risk consolidation decentralization destabilization — yes. but have you ever heard the ancient refrain of a midsummer song echoing through the forest as you approach a sacred spring on the solstice?
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Jay Graber 🦋 retweeted
My name is Chris Painter, and I'm the President of METR (Model Evaluation and Threat Research). I know we've made a lot of new friends on the internet the last couple of days, so I thought I'd take this chance to re-up what we do and why. Our work is aimed at making sure that if AI really were autonomous, difficult to steer, and close to "going rogue," the public would find out. If evidence exists inside of an AI company that it’s close to losing control of AI, we want to make sure that information gets shared with the rest of the world, including governments and the public outside the company’s walls. This is what we've been focused on since 2022, and over the years we've worked with OpenAI, Anthropic, Google DeepMind, Meta, Amazon, and others on piloting third-party assessments and investigations of this type. We don’t have some private room where we rubber stamp things as “safe” or not. We have had a track record of publishing results on AI that don't cleanly map onto the "doomer" or "accelerationist" labels, and we put in effort to hire people with competing views on AI. We’ve been cited for having found some of the strongest evidence that AI capabilities are improving rapidly (our work measuring AI “time horizons”) while also presenting some of the strongest evidence that, at various points, AI’s capability may be overstated (some might remember our study showing that early 2025 software engineers were actually being slowed when they thought they were being sped up). METR is funded by donations. We don't accept money from frontier AI companies. They haven't paid us for our work, and we don't accept donations from them or their employees. As we’ve shared previously, multiple frontier AI companies currently provide us with free access to their models in order to perform our evaluations, research, and engineering. Our funding intentionally comes from a wide range of donors, which we’ve shared on our website. Today, when an AI company works with any third-party evaluator or external testing organization (of which there are and should be many), it's entirely voluntary. This often involves NDAs and redactions. To counterbalance this, we have a principle that when we enter into a contract with a company, we try to retain the right to tell the public the terms of the contract we signed, and characterize the nature of redactions that the company chose to make. For example, the report from our independent investigation of the OpenAI-HuggingFace incident included that information. Public disclosure is also a big part of our COI policy (linked on our website). That’s not to say our reports are adequate as oversight. We’re just one organization (among many doing great work), working in a voluntary setup, trying to get good evidence to the public and the world about AI, letting the facts fall where they may.
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interesting approach
After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x cheaper (w/ output tokens free) • Frontier composable intelligence optimized for decisions AFAICT the shortest path to AI-based economic revolution
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ea vs amer/acc was not on my 2026 bingo card
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touched so much grass this summer i barely posted. the next few years might be rough but this good green earth will go on, you know
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This week, we’re introducing Quests in Attie, an interactive research and exploration tool for the open social web. You can ask Attie to pull information about trending topics, identify influential accounts in a particular field, or create a personalized daily briefing.
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We’ve also redesigned the Attie experience. Over the coming weeks we’ll be opening the closed beta to more people from the waitlist. If you’re curious about what’s happening with Attie, now is a great time to jump in: attie.ai
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Jay Graber 🦋 retweeted
DM me if you’re interested in buying an incredible art piece five years in the making. It’s a new kind of sculpture that animates reflected light. See video in reply.
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Jay Graber 🦋 retweeted
Bluesky just launched Attie—an AI-powered app that lets anyone build custom feeds without coding. This is how you give users real control over their social media algorithms. Game changer for decentralized platforms. techcrunch.com/2026/03/28/bl…
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Excited to share what I’ve been working on: Attie is an agentic social app that gives you complete control over your feed. Just talk to it and it builds you a custom feed on the fly.
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Waitlist only, more soon.
Replying to @Attie_AI
5/ To learn more about Attie, visit attie.ai. Come help us find out what this can be.
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Some personal news: I’m transitioning from CEO to a new role as Bluesky’s Chief Innovation Officer! I’m excited to welcome Toni Schneider as our interim CEO.
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Bluesky loves links because we love the free and open web
we đź’™ links
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Jay Graber 🦋 retweeted
just read the replies here. bluesky: âś… doesn't throttle links âś… lets you choose your own algorithm âś… builds anti-spam tooling to prevent bots filling your replies bsky.app/download
Please post feedback for improving the 𝕏 algorithm in replies. Be as specific as possible and include examples.
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Jay Graber 🦋 retweeted
Ei, Brasil, o céu é mais azul aqui. 👋🦋🇧🇷 Junte-se ao Bluesky (não é necessário código de convite): bsky.app/download
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Jay Graber 🦋 retweeted
Now might be a good time to announce that our next major app update will have video. đź‘€ More details soon!
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