research @openai, previously CS theory @Berkeley_EECS, eng @twosigma, math @princeton | fan of graphs, crosswords, turtles, bad puns, running, and Survivor

Joined December 2012
That feeling when you can’t tell if your lower bound should be higher or your upper bound should be lower
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ok, if you want a shirt: $17 and all funds raised are donated to @cleanaircatf customink.com/fundraising/sw…
Saw someone walking around with the craziest shirt just now in SF
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The GPT-5 unicorn’s hair is almost as good as @rapha_gl’s
Here at @OpenAI we've cracked pretraining, then reasoning, and now we're experimenting with a new set of techniques that maximally leverage their interaction. GPT-5 is just the first step in this direction, and we're incredibly excited to see where scaling this up will lead us!
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Can confirm Hansen is a walking cache of Google Maps in the Bay Area. Cool eval work! 💪
🗺️ Can LLMs navigate San Francisco purely from memory, without Google Maps? I tested spatial reasoning of the 19 top LLMs. Honestly...they were all pretty bad. Best in cities: o3 (38%) Best on highways: grok-4, o3, o4-mini (62-64%)
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Elizabeth Yang retweeted
.@Lightskis is building Cursor for Engineering Docs. Spend less time writing— their AI Agent searches through your codebase and existing docs to build a draft. Then, continue refining in their multiplayer editor. ycombinator.com/launches/Mm8…
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Elizabeth Yang retweeted
I'm interested in complex dynamical systems such as ant colonies, slime molds, and new jersey
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Elizabeth Yang retweeted
2x cheaper & faster is for English, but for other languages (especially non-latin-script) expect - thanks to our new tokenizer -- even up to 9x cheaper/faster!
1.7x fewer tokens in Korean, which means GPT-4o feels 3.4x faster to Korean users!
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GPT-4o is here! Stronger multimodal and multilingual capabilities, and most importantly, free!
Say hello to GPT-4o, our new flagship model which can reason across audio, vision, and text in real time: openai.com/index/hello-gpt-4… Text and image input rolling out today in API and ChatGPT with voice and video in the coming weeks.
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Elizabeth Yang retweeted
fave part of all this is @markchen90 and @barret_zoph asking for math help bc they def need that
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Such a bad phishing text on so many levels (the caps gave it away)
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Recruiting emails getting bolder
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Aren’t these all just from the Blank Space music video
Someone asked AI to create images of Taylor Swift working at Walmart on Black Friday. This is what it came up with.
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Satya is a class act
At the end of the day, the greatest privilege of my job is working with people who are driven by mission. These last 5 days, I saw people across OpenAI remaining calm and resolute in driving their mission despite all that was happening around them. And I saw people across Microsoft remain focused on our mission and serving our customers and partners, stepping up to help in every way. This is what I’m especially thankful for going into the Thanksgiving holiday. Thank you for your resolve and for the work you do each day to advance AI safely and responsibly and distribute its benefits to all of humanity.
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Back at it tomorrow 🙌🙌
We have reached an agreement in principle for Sam Altman to return to OpenAI as CEO with a new initial board of Bret Taylor (Chair), Larry Summers, and Adam D'Angelo. We are collaborating to figure out the details. Thank you so much for your patience through this.
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Elizabeth Yang retweeted
We have reached an agreement in principle for Sam Altman to return to OpenAI as CEO with a new initial board of Bret Taylor (Chair), Larry Summers, and Adam D'Angelo. We are collaborating to figure out the details. Thank you so much for your patience through this.
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Elizabeth Yang retweeted
It’s beautiful how everyone comes together in the moments of crisis. I feel closer today than ever to my OpenAI colleagues ❤️
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Experiencing Season 7 of Silicon Valley because of Joseph Gordon Levitt’s wife was not part of my 2023 bingo card
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🫶
i love the openai team so much
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You know it’s been a long week when you import np as numpy
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Wondering if Peter Parkedcar has an Uncle Benz
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