Update: Felix's farewell letter was just published. I read each and every word. Sharing here with my big audience because it may literally save lives. Turns out that stress in AI only contributed a bit. Overdose of ketamine (psychedelic drug) was what pushed him over the edge.

Browser-Use WebUI Run AI Agent in your browser

The weight of giant pumpkins has increased 20-fold in half a century. Humans are ridiculously good at breeding fruits. Data from the "Safeway World Championship Pumpkin Weigh-Off."

Enjoy! huggingface.co/microsoft/phi-4

This might be the first time after 10 years that boosted trees are not the best default choice when working with data in tables. Instead a pre-trained neural network is, the new TabPFN, as we just published in Nature 🎉

Phi-4 is now available in anychat Try it out

Excited to announce the first RLC 2025 keynote speaker, a researcher who needs little introduction, whose textbook we've all read, and who keeps pushing the frontier on RL with human-level sample efficiency Richard Sutton

I'm joining forces with Mike Knoop to start Ndea (ndeainc2), a new AI lab. Our focus: deep learning-guided program synthesis. We're betting on a different path to build AI capable of true invention, adaptation, and innovation.

We've raised $105m in Series B funding from Thrive, Andreessen Horowitz, Benchmark, and existing investors. We're delighted to report that Cursor is now used by millions of engineers as their editor of choice. Our tailor-made models generate more code than almost any LLMs in

thank you to the external safety researchers who tested o3-mini. we have now finalized a version and are beginning the release process; planning to ship in ~a couple of weeks. also, we heard the feedback: will launch api and chatgpt at the same time! (it's very good.)

One of the longest running and prestigious journals in our field is the Computational Linguistics Journal. It's been around from 70s. It's got a brand new social media account now: Computational Linguistics Journal Latest news about upcoming issues to be there there! #NLProc #CLjouenal

A research preview of Operator, an agent that can use its own browser to perform tasks for you.

Very happy to show that we can do RL finetuning on 405B models with open-source code, beat Llama 405B instruct with their base model, and beat DeepSeek V3 too. Enjoy building off this teams hard work. Here's Tulu 3 405B. A holiday present from Hamish Ivison, Costa Huang and team.

soon we will need another exam...

Very excited to finally share OpenAI's "deep research" model, which achieves twice the score of o3-mini on Humanity's Last Exam, and can even perform some tasks that would take PhD experts 10+ hours to do! A few thoughts on the implications: Deep research can be seen as a new

Stoked to get to talk to Lex Fridman + my homie Dylan Patel for 5+ hours to try and get to the bottom of what is actually happening in AI right now. DeepSeek R1 & V3, China v US, open vs closed, decreasing hype, datacenters, everything in between... 🚀 what a fun whirlwind week

Made this plot for an upcoming talk---crazy how quickly benchmarks get saturated these days. Looking forward to seeing how things play out for Humanity's Last Exam!

"the human brain doesn't need tons of training data to do stuff"