When you throw a ball at a wall, you can be sure it will bounce back at you. You would be extremely surprised if the ball suddenly appeared on the other side of the wall. In quantum mechanics this type of phenomenon is called tunnelling and is exactly the type of phenomenon that

And the prize for best goodie ever goes to the OLMO team at Ai2! Thrilled to feed this to my reader and have a weight inspection & chill night 🍿 #COLM2025

Not surprising, but scary. This should be yet another in a long line of clear wake up calls for the world to dramatically increase funding for AI safety.

We need larger, cohesive hubs of research, global communities in single places. Europe has the huge advantage of being geographically dense and having a socioeconomic system that encourages frictionless exchange. I don’t think ELLIS is sufficient.

Training LLMs end to end is hard. Very excited to share our new blog (book?) that cover the full pipeline: pre-training, post-training and infra. 200+ pages of what worked, what didn’t, and how to make it run reliably huggingface.co/spaces/Hugging…

🥳 Accepted at SIMBIOCHEM EurIPS Conference 2025! We embed a dynamical system simulating vapor compression cycles in a RLFT pipeline and train Refgen, our generative model for sustainable refrigerant molecules 🌎🌱 and we are far from done, but the initial feedback is good!

I guess forgetting to cast to bf16 was not a mistake after all…

Europe Builds. Others Profit. 3D Gaussian Splatting (3DGS) is the perfect case study. It reflects both Europe’s brilliance and its chronic inability to turn that brilliance into business. Almost everything that made 3DGS possible was born in Europe. From the early breakthroughs

I still show this guy’s cv to people. Welcome back!

Got burned by an Apple ICLR paper — it was withdrawn after my Public Comment. So here’s what happened. Earlier this month, a colleague shared an Apple paper on arXiv with me — it was also under review for ICLR 2026. The benchmark they proposed was perfectly aligned with a