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Thijs
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Thijs
@cdngdev
20yo / co-director @hackwithtrees cs @stanford / ex: @arena @discord @a16z
Sumali Mart 2020
673 Sinusundan3.4K Mga Tagasunod
Promptfoo will be joining OpenAI.
We’re staying open source and we’re going to keep supporting customers and users.
We built Promptfoo to help devs test and secure AI apps. The results have been phenomenal: 350k+ developers, 25%+ of the Fortune 500, 23 people, ~2 years.
AI agents are eating the world, and joining OpenAI will supercharge our technology as we connect it deeply into the model and inference layers. We will be able to find & fix AI security issues in a way that no one else has done before.
Grateful to our team, to a16z and Insight Partners, and to the community who helped turn this into something huge.
You built this with us. Much more to come ❤️
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RT @sandylikesfrogs: btw every problem you’ve ever had can be solved by a sufficiently long frolic in the woods
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We interviewed @sama — crazy stories that have never been told before
> how sam crashed a Stanford professor's car
> the first day of OpenAI in @gdb's apartment
> "sam, are you happy?"
> sam's day in the life
> his time at Stanford before dropping out
> what to build now
TreeHacks@hackwithtrees
We sat down with @sama for a fireside chat at TreeHacks 2026. We chatted about his time at Stanford, the early days of OpenAI, and the future! 0:00 Steam tunneling and freshman year at Stanford 2:03 Founding Loopt in soph year 4:16 YC changes everything 6:16 Dropping out of Stanford 8:16 How to raise 10:38 How OpenAI was born 15:18 How he met OpenAI co-founders 17:03 OpenAI's first day in @gdb's apartment 19:01 When moment when OpenAI started to work 20:33 Why GPT-2 was the turning point 22:07 AGI will be here in >2 years. 25:32 What should people build now? 29:57 How AI will impact politics, religion, and society 34:24 How do you compete with OpenAI? 36:40 Is OpenAI *really* burning cash dangerously fast? 37:46 Sam, are you happy? 40:23 What AI subfield today feels like OpenAI in 2016? 42:26 Custom silicon & hardware
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We went to America's top hackathon (@hackwithtrees) to see if @dagsen could predict the grand prize winner before the judges made up their minds.
Was he successful? Find out in our latest video!
00:00 Introducing Treehacks
00:38 AI-powered chemistry
01:06 Remote surgery hardware
01:41 A prediction market for the hackathon
02:30 Dagsen’s strategy
03:10 Rescue robot
03:27 Semi-autonomous diving robot
03:44 AI-powered dancing game
03:49 Packing optimizer powered by AI
04:00 Control a computer with your mind
04:17 Turn any vehicle into a self-driving car
04:57 AR help for Alzheimer’s patients
05:15 Tool to block addictive social media features
05:50 Checking back in with the robot surgery team
06:26 Putting Claude Code agents into AR
06:50 And the winner is…
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Take a look into what TreeHacks was like this year! Dagsen + team captured the essence perfectly
Soon@soontechnology
We went to America's top hackathon (@hackwithtrees) to see if @dagsen could predict the grand prize winner before the judges made up their minds. Was he successful? Find out in our latest video! 00:00 Introducing Treehacks 00:38 AI-powered chemistry 01:06 Remote surgery hardware 01:41 A prediction market for the hackathon 02:30 Dagsen’s strategy 03:10 Rescue robot 03:27 Semi-autonomous diving robot 03:44 AI-powered dancing game 03:49 Packing optimizer powered by AI 04:00 Control a computer with your mind 04:17 Turn any vehicle into a self-driving car 04:57 AR help for Alzheimer’s patients 05:15 Tool to block addictive social media features 05:50 Checking back in with the robot surgery team 06:26 Putting Claude Code agents into AR 06:50 And the winner is…
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EXCLUSIVE SCOOP: I joined the wonderful Labs team at OpenAI. I am learning a lot and have l enjoyed it very much.
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The winner of Stanford's hackathon, @hackwithtrees, was an AI-powered cane for the visually impaired.
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Toryn built and designed our super sick PCB badges this year!
check out his post on how he made them
Toryn@tttorynnn
It was an absolutely crazy journey organizing the 12th annual TreeHacks. Short read about how I made this year's PCB Badges 👇 toryn.bio/blog/pcb-badges
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It was an absolutely crazy journey organizing the 12th annual TreeHacks.
Short read about how I made this year's PCB Badges 👇
toryn.bio/blog/pcb-badges
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Came out of a 2 year long hackathon retirement to win 🏆 GRAND PRIZE at @hackwithtrees !!!
In 36 hours, we:
- Manufactured, designed, and built an entire 4-armed surgery robot (+ a 6am trip to Home Depot).
- Wrote our own inverse kinematics control system.
- Designed a custom algorithm to convert LIDAR data into 3d coordinates.
- Built a multi-LLM robotic agent using @OpenAI's GPT-5.2 and @GoogleDeepMind's Gemini Robotics-ER 1.5.
- Mapped real-time orientation data from a Meta Quest 3 onto a physical moving camera arm.
- Created Nix flakes for reproducible builds on both our production and development environments.
- Used dependent type theory in Lean to prove that trajectories are within safe physical bounds.
And the best part is we came up with the idea during the Hackathon.
Check out our project here: devpost.com/software/we-us…
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HACKERS HACKERS HACKERS
TreeHacks@hackwithtrees
Ali Partovi hypes up the crowd at TreeHacks 2026
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