Personal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.

The most female-led product org in tech right now: Chief Product Officer: Ami Vora Claude Code/Cowork Head of Product: Cat Wu Claude Code/Cowork Head of Eng: Fiona Fung Claude Platform Head of Product: Angela Jiang Claude Platform Head of Eng: Katelyn Lesse Research Head of Product: Dianne Penn President: Daniela Amodei (Also, the fastest-growing company in history)

A CEO from one of our portfolio companies shared this with their team. I’m re-sharing it with their permission, because it resonated and reflects what all founders and CEOs should be communicating. -- We are living through a period of compounding change. And in moments like this, the biggest risk is no longer making the wrong decision. It is moving too slowly while the world moves around you. There are two paths. We can play defense: - Protect what we have - Optimize what works - Wait for clarity It feels safe. It isn’t. Or we can play offense: - Learn faster than the environment changes - Use new tools to solve old problems in better ways - And create entirely new strategies and businesses That’s where the opportunity is. Challenge yourself to do things faster and better than you have ever attempted. Stay uncomfortable. Stay on the front foot.

You can now enable Claude to use your computer to complete tasks. It opens your apps, navigates your browser, fills in spreadsheets—anything you'd do sitting at your desk. Research preview in Claude Cowork and Claude Code, macOS only.

Ever wonder how a team of a few manages a community of over 1,500 people? @NeildaLikeZelda took the stage at Tech Thursday to share exactly how AGIV runs on AI. She demoed Oat Milk, our custom Discord chatbot powered by Claude, live. Watch the full video on YouTube. piped.video/watch?v=z_18ntko…

I packaged up the "autoresearch" project into a new self-contained minimal repo if people would like to play over the weekend. It's basically nanochat LLM training core stripped down to a single-GPU, one file version of ~630 lines of code, then: - the human iterates on the prompt (.md) - the AI agent iterates on the training code (.py) The goal is to engineer your agents to make the fastest research progress indefinitely and without any of your own involvement. In the image, every dot is a complete LLM training run that lasts exactly 5 minutes. The agent works in an autonomous loop on a git feature branch and accumulates git commits to the training script as it finds better settings (of lower validation loss by the end) of the neural network architecture, the optimizer, all the hyperparameters, etc. You can imagine comparing the research progress of different prompts, different agents, etc. github.com/karpathy/autorese… Part code, part sci-fi, and a pinch of psychosis :)

Builders Sunday at @Shopify is LIVE! @AGIVentures was present and the energy was unreal. We brought boba tea because great builders deserve great fuel. It runs every Sunday in March from 12 to 5 PM. New spots drop every Wednesday at 12 PM ET for the following Sunday.

AI agents are making leaders of us all (including juniors) and most people are not ready for this promotion.

Coming soon to everyone.

After hearing feedback from Canadian founders in our network, we’ve decided to add Canada back to our list of accepted countries of incorporation. Going forward, YC will once again invest in US, Canada, Cayman, and Singapore corporations. ycombinator.com/blog/adding-…

Think in years. Ship this weekend. What are you shipping this weekend? 🚀

We wrapped up the "Situation Dashboard" Hackathon at our Hacker House last weekend, powered by @tavilyai x @claudeai. People showed up ready to build 🏗️ Checkout the winning projects below!

Please @claudeai give me access 😫🙏 I need help planning, running, and sharing about our @AgiVentures hackathons and events.

If you didn’t ship it, it never happened We’re hosting our first hackathon of 2026 at our new hacker house! 🇨🇦 Powered by @BackboardIO Ship, Merge and walk away with prizes. Apply here: luma.com/ja2lt6zy