Alex Chen

Babysitting GPUs / F on Empirically-Driven Scaling / prev @ Edinburgh NLP 24'

[Lex Fridman @lexfridman]

NVIDIA letting Jensen go is a huge mistake, for America and for humanity. It's Apple firing Steve Jobs all over again, but much bigger, given the role of AI in defining the future of our world.

I've been keeping quiet on this out of respect for Jensen's family and team, who I've met and who are amazing humans, and because I personally hate infidelity. So my heart goes out to them in this difficult personal family moment.

But I can also say that Jensen is human, and makes mistakes like all of us do. Not that I matter at all, but I've known Jensen for a long time and have gotten the chance to spend a lot of time with him, behind the scenes, away from mics and cameras. I have seen him show kindness, humility, care to everyone around him, including strangers, including from the poorest most struggling parts of society, treating all the same with the same thoughtfulness and attention, because they are fellow humans and not because he has something to gain from them. That shows rare character, to maintain humility and humanity through all of it.

Another data point is what people who know him well have said privately to me about Jensen over the years. I've never had anyone tell me anything but how awesome he is or how much they love him. Probably over a thousand people at this point. This includes hundreds of engineers, CEOs, colleagues, friends, etc.

Also, since there was some spy talk. Jensen is as proud an American as it gets. I'm in shock frankly at all of this, including the mass hysteria around it. I love America, and I think NVIDIA letting Jensen go is terrible for America.

I stand with Jensen.

Love you all ❤️

[Alex Chen @ipruning]

@nytchinese 操你妈

[Alex Chen @ipruning]

@TheEconomist Fuckoff

[Alex Chen @ipruning]

@sqs can’t wait to use Amp on the Duo. XD

[Alex Chen @ipruning]

we were grinding GSM8K & BBH in 2022 🙂

[OpenAI @OpenAI]

We’re sharing a solution to the Navier-Stokes Millennium Prize Problem, one of the deepest problems at the frontier of mathematics.

The proof was produced by a group of agents, using an OpenAI next-generation model significantly more capable than GPT-6 Astra.

The problem concerns whether the description of smooth three-dimensional fluid motion modeled by the Navier-Stokes equations can break down. It has remained unresolved for roughly 90 years.

[Alex Chen @ipruning]

@XiangHCI @HKUniversity Congrats!!!

[Alex Chen @ipruning]

@JustinLin610 Congrats, junyang!!!

[Alex Chen @ipruning]

My friend just open-sourced Persome, a local-first macOS runtime that turns daily activity into structured context for AI agents via MCP.

https://t.co/z9F8BlSxxh

[Tianz @Xtian5676]

Before AI, human leverage was 1×1. Agents made it 1×n. Now, we’re entering the n×n era: where one person becomes infinitely many selves, each thinking, creating, and acting in parallel.

Today we’re open-sourcing Personal Model: a local-first Personal Model for macOS, built from daily work on your computer, for AI agents over MCP.

#PersonalModel @PersonalModel_

https://t.co/OUkVRSOc2E

[Alex Chen @ipruning]

Necessary difficulty is underrated.

Not all friction should be removed. In learning, some friction is the mechanism.

Taste requires eating. Learning requires chewing.

The trap with always choosing the easiest medium is that you may remove the exact friction that makes the idea become yours.

[Alex Chen @ipruning]

READ THE CODE

[Mitchell Hashimoto @mitchellh]

@poojabnf I read the code

[Alex Chen @ipruning]

Huge congrats!

I backed RepoPrompt from the first version with a lifetime license, and the o1 Pro + XML editing workflow left a real impression on me at the time.

Everything that came after, from rp-cli to the surrounding tooling, had such consistently good taste. I learned a lot from watching how you built.

Excited to see you bring that taste to OpenAI DX / Codex. Best possible collaboration.

[eric provencher @pvncher]

Yesterday was my first day at @OpenAI working under the amazing @romainhuet.

I've spent the better part of two years pushing the frontier of having models write code for you, shipping updates week after week for @RepoPrompt.

Transitioning from being a founder is never easy, especially when you have a community of amazing developers who invested so much in your tool.

Thankfully Romain worked hard to ensure that all those users would be taken care in the process, and if you're one such user, you should have an email waiting in your inbox with the details!

I'm very excited to be joining this talented team and work alongside everyone at OpenAI contributing to codex.

[Alex Chen @ipruning]

True

[Jesse Michael Han @jessemhan]

agent harness -> evangelion

[Alex Chen @ipruning]

@geekbb 加入 hhh

[Alex Chen @ipruning]

@xuanwo Hey！

[Alex Chen @ipruning]

@iamsahaj_xyz can confirm

[Alex Chen @ipruning]

@Yuchenj_UW wow

[Alex Chen @ipruning]

@ivanleomk wow congrats bro!!

[Alex Chen @ipruning]

@davidcrawshaw @kingofknowwhere so cool

[Alex Chen @ipruning]

holy fuck!!!!!!

[OpenAI Newsroom @OpenAINewsroom]

We've reached an agreement to acquire Astral.

After we close, OpenAI plans for @astral_sh to join our Codex team, with a continued focus on building great tools and advancing the shared mission of making developers more productive.

https://t.co/V0rDo0G8h9

[Alex Chen @ipruning]

🤣 Kinesis is all you need!

[Francis Greenleaf @inferencetoken]

Not a bad situation monitoring setup @jxnlco