Cofounder/CEO of @wandb - tools for AI developers acquired by @coreweave
Joined February 2008
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- Following4.3K
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I used ChatGPT to design a hexapod with cheap motors and printable parts and to train it to walk in a simulator
My three year old and six year old collaborated to vibe code this game - I think it's got legs: smashy-smashy.netlify.app
Lukas Biewald retweeted
I don’t love this idea that nothing anyone said or did in 2019-2020 counts.
Like it’s fine as a sociological observation, but I want political leaders who keep their heads even in the face of dumb fads.
Lukas Biewald retweeted
LLMs can hide a text in another text of the same length.
I'll explain how, it is very simple, you'll understand before I finish, and smile.
That's what I noticed during my #ICLR2026 poster session in Rio! 🇧🇷
Too bad you missed it, but let me remedy now
When I was just starting my first company and didn’t know anyone in tech, Om helped me out and asked for nothing in return. He was relentlessly positive and supportive of everything I worked on. Seeing my twitter feed, it’s incredible how many people he touched in the same way. What a great human. om.co/2026/06/24/1966-2026/
Lukas Biewald retweeted
Introducing Exa Connect: connecting agents to data beyond the public web.
Available today with ZoomInfo, Crunchbase, Similarweb, and many other leading data providers.
exa.ai/connect
I vibe-CADed a hexapod walker entirely with claude/codex, learned the walking gait entirely in the 3d simulator, 3d printed the generated files, ordered the full BOM from amazon, assembled the thing. The fact that this is possible is amazing, but there's still some clear differences between the simulated world and reality 😀.
Lukas Biewald retweeted
Introducing “Comeback City: A Love Letter to San Francisco.” Proud to call this place home.
Lukas Biewald retweeted
.@SGRodriques left physics because "there were no unsolved problems left."
So he built an AI scientist to cure every disease, solve aging, & map the human brain.
New Gradient Dissent episode out now.
@l2k
Lukas Biewald retweeted
Lukas Biewald (@l2k) built Weights & Biases into the system of record for AI model training at OpenAI, Meta, NVIDIA, and 30+ other foundation model builders. He also built it on ClickHouse.
Now SVP of AI at CoreWeave, Lukas is joining us at Open House for a conversation on ecosystem and technology trends.
Register free: clickhouse.com/openhouse/san…
OpenAI proves a surprising result on an easy to understand problem with a constructive proof involving points on a 2d plane. I feel like there should be an awesome visualization of these points but I can’t find one - has anyone made one yet?
I love letting my six year old daughter create crazy cursor prompts and seeing what it spits out.
If you find this summary intriguing, you can try the game at otto-game-browser.netlify.ap… - it did an impressive job with a tough spec
