President & Co-Founder @OpenAI

Joined July 2010
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The gradients must flow.
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Being an ML engineer sometimes feels more like being a manager than an individual contributor. When writing software, you think through every edge case & behavior yourself. In ML engineering, you shape the behavior of systems through indirect means. Trickier, but more leverage.
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I can attest that it was delicious (real cake + generated image):
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A universal design trick in software: make as much of your application stateless as possible, and concentrate your persistent state in a central, simple, perhaps unscalable solution (database, custom process). State is a fundamentally-hard part of software, so work to minimize it
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Spaghetti is meant for eating, not code.
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Realized today one major difference between in-person and virtual meetings: laughter. IRL, I’ll often make jokes, but over two years of video calls I can barely recall a single funny moment. Surprised how easy it was to forget an entire dimension of interaction, and not notice.
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How to succeed at a startup: get one big idea right, and then execute diligently for years on innumerable small features (e.g. being able to directly copy-paste working API code from your website) to delight your users.
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The difference between a framework and a library is that a framework controls how other code is written, while a library is designed to be composed with any other kind of code. Explains why developers love writing frameworks, even though users basically always want libraries.
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A surprisingly catchy (and comprehensive) song about AI progress. Will definitely be a hit at all the SF parties:
From Yann LeCun (@ylecun) to Andrew Ng (@AndrewYNg), conversational AI is full of legendary supermodels. So we created a music video honoring the history & brilliant makers behind this incredible tech, while also poking some fun at our own #AIsupermodels.
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It is less popular but more satisfying to focus on your own success than someone else's failure.
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The hardest problem is often figuring out the easiest version of the problem that will you absolutely have to solve and cannot defer.
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Some things never change:
An ancient Egyptian painting depicting an argument over whose turn it is to take out the trash #dalle
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Replying to @pchopra28
According to @karpathy, tweets that sound like they were written by GPT-3 :)
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"A cartoon of a startup that has lost its focus"
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A startup can be best in the world in at most one thing. Choose your focus carefully, and avoid all temptation to broaden scope unless it means getting better at what you already do.
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The ultimate insult!😂
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"Civilizations heading away from each other at near speed of light"
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Long-term future of humanity will require not just interplanetary redundancy, but to have multiple independent civilizations heading away from each other at near speed of light.
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Replying to @thisisisheanesu
"A hyperoptimized supercomputer, trained over hundreds of millions of years to ensure your well-being & survival". Enjoy!
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