Jason Teplitz

Programming big computers @openai. Previously kernel hacking @apple. Views are my own.

[Jakub Pachocki @merettm]

I want to prevent a race into unmonitorability kicked off by confused reporting. The depth of the computation graph for our present frontier models, including Astra, is within a factor of two of GPT-4.

OpenAI has worked to preserve and utilize chain-of-thought monitoring since our very first reasoning models. We deeply care about this technique, as it can give us a view into how model alignment generalizes from its training distribution. I do think it is fragile and unfortunately trending in a negative direction, for reasons not contingent on architecture changes that I will write about soon. But there are things we can do to strengthen it, and it's a core goal of our current research program.

[Marion Lepert @marionlepert]

Catching skin cancer early is a home robotics problem.

Melanoma is highly treatable when detected early, yet today’s screening process depends heavily on patients noticing tiny changes across their entire skin surface. This requires patients to solve a near-impossible visual-memory and registration problem.

I built OpenDerm, an open-source 4-DOF robot that captures high-resolution images of the skin and uses them to reconstruct and track the skin surface in 3D over time.

The best way to make skin screening truly routine is to bring it into the home. OpenDerm shows that inexpensive robotic skin imaging is possible, but the path to scale is not a dedicated screening robot in every household—it is to make skin screening one of the many useful things a general-purpose home robot can do.

Read more about why I built OpenDerm and how it works here:
Blog: https://t.co/KYlNIkF3TV
Project: https://t.co/c9d4KuwXUP

[Sam Altman @sama]

it's very hard to get the math and ML right on a run as big as GPT-4.5, and requires difficult work at the intersection of ML and systems.

@ColinWei11 , Yujia Jin, and @MikhailPavlov5 did excellent work to make this happen!

[Sam Altman @sama]

GPT-4.5 is ready!

good news: it is the first model that feels like talking to a thoughtful person to me. i have had several moments where i've sat back in my chair and been astonished at getting actually good advice from an AI.

bad news: it is a giant, expensive model. we really wanted to launch it to plus and pro at the same time, but we've been growing a lot and are out of GPUs. we will add tens of thousands of GPUs next week and roll it out to the plus tier then. (hundreds of thousands coming soon, and i'm pretty sure y'all will use every one we can rack up.)

this isn't how we want to operate, but it's hard to perfectly predict growth surges that lead to GPU shortages.

a heads up: this isn’t a reasoning model and won’t crush benchmarks. it’s a different kind of intelligence and there’s a magic to it i haven’t felt before. really excited for people to try it!

[OpenAI @OpenAI]

Livestream in 4.5 hours.

[Sam Altman @sama]

the mission continues

[Dylan Hunn @dylhunn]

In #Angular Typed Forms, the `get` method takes a string with dot-separated control names, and returns a fully typed value. How is this possible?

We can actually parse the argument at compile time, using the magic of #TypeScript template literal types! Let's see how it works. 🧵

[NAACP @NAACP]

They've killed us for less!

[Joe Biden @JoeBiden]

How will I ensure the rights of LGBTQ+ people are protected under U.S. law?

I’ll change the law.

[Jason Teplitz @jteplitz]

@Google it's pretty embarrassing that even you don't support the Google and YT music apps. Don't you all work at the same company?

[Jason Teplitz @jteplitz]

@elminiero Hey did you ever resolve this?

[Jason Teplitz @jteplitz]

@orange 7/ you sold me a service that doesn't work, and charged me more money to tell me it doesn't work. Can I just get the data I bought?

[Jason Teplitz @jteplitz]

@orange 6/ after 45 minutes on the phone, paid for by me in international minutes, I was told there's no way for me to connect.

[Jason Teplitz @jteplitz]

@orange 5/ "I paid for a sim card and was told it would work all over Europe. It stopped working immediately outside Spain.

[Jason Teplitz @jteplitz]

@orange 4/ "Your SIM card is confused. Sometimes they just get lost." I study computer networking. Explain what that could possibly mean.

[Jason Teplitz @jteplitz]

@orange 3/ "orange's network is not very good outside of Spain."

[Jason Teplitz @jteplitz]

@orange 2/ other gems include being told "you won't believe what our sales agents will say to close a sale"

[Jason Teplitz @jteplitz]

@orange 1/ just talked to your customer service because my phone doesn't work. Was told that your network "is not guaranteed to work"

[Jason Teplitz @jteplitz]

Had a blast on @AngularAir this morning! https://t.co/PXbaturB2f

[robwormald @robwormald]

super excited to announce i'm joining Google as Developer Advocate for the Angular team!