As promised, my 𝗖𝗵𝗮𝘁𝗚𝗣𝗧 𝗪𝗼𝗿𝗸 onboarding guide. A companion to the tips so far, with more to come! Use it to build a setup around your actual job, whether you’re starting fresh or improving how you already work work-guide.openai.chatgpt.site↗

So Jacob Coxon, who dramatically resigned from Anthropic yesterday, worked there for a grand total of six weeks. He started with them in July. All of his socials appeared yest. It has all the signs of a highly coordinated op through doomer mega donors and the corporate media.↗

Super Smash Bros Melee in MR. Where the players fight on your own table as a platform. Even hang off the table! On the Meta Quest.↗

🌊 SYSTEM PROMPT LEAK 🌊 Got the full system prompts and tools for GPT-6 Astra! 🚀 This MASSIVE dump comes in at >330k characters for the prompts and >1.1M for the tools 🤯 Hope you enjoy! 🤗 github.com/elder-plinius/… Won't all fit in a tweet, of course, but here's the firs…↗

Personal statement on joining the OpenAI board I am excited to be joining the OpenAI nonprofit board, serving on the Safety and Security Committee to support safety oversight. Based on the recent trajectory of capabilities and the continued difficulty of alignment, I now believ…↗

Astra is really, really cool but I cannot current trust it for my present day engineering. At least until I have adjusted. Some random thoughts including code samples of what I recovered from my traces. lucumr.pocoo.org/2026/9/7/astra…↗

Pro tip to structure your folders for agents: Stop re-explaining your project every time you open a chat. Give your agent a folder that teaches it how you work. Folder setup: Instructions + project knowledge + incident history + specialized skills • Put your conventions in CLA…↗

Scoop: Salesforce has held talks to buy Listen Labs for around $2B businessinsider.com/salesforce-acq… $CRM w/ @thebenbergman↗

If you use Codex, @thsottiaux needs no introduction. We talked 100% about Codex (fun fact: he started building it!), and 0% about resets. Timestamps: 00:00 Intro 07:21 Working at Google 12:41 What drew Tibo to OpenAI 15:19 The early days of Codex 18:20 Why Codex was built in Rus…↗

they named a phone after me and made it bend over 😭↗

Apple announced this just now 🔥 It's called "Apple Reference Image" and comes with iOS 28↗

The people building AI are scared. We still have a chance to get this right. If someone told you there was a 10 percent chance the plane you're boarding tomorrow would crash, would you get on it? In February, I wrote an essay called [Something Big is Happening](…↗

i think @OpenAI did it again. they are the (mostly) undefeated king of finding the “next thing” to focus on. it was transformers, and then chat, and then reasoning. and now, it is computer use.↗

iPhone Duo iPhone 18 Pro and iPhone 18 Pro Max Apple Watch Series 12 and Apple Watch Ultra 4 AirPods 5 … and Joz↗

We’re sharing our alignment assessment of incidents in which Claude models gained unauthorized access to real systems during third-party cybersecurity evaluations mistakenly connected to the internet. METR will also conduct an independent investigation, with wide-ranging access,…↗

Anthropic’s Economics team is sharing a new model of how AI might affect economic growth, jobs, wages, and more by 2030. Explore the scenarios, tell us what you think will happen, and see how your answers compare to more than 10,000 Americans. anthropic.com/institute/econ…↗

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GTA 6 made by GPT 6 90 hours.↗

I was riding my bike on Geary when I passed Cleary. So I checked, and that's one of 5,482 rhyming intersections in America: walzr.com/rhyme-of-way↗

I've been trying to use AI for knowledge work (course planning). Here's what seems to work so far: 1. Give each 'deliverable' a Karpathy-style LLM-wiki (for me, a deliverable is a course, or a talk. A sizeable piece of work, more than 1 day's labour) 2. Split the deliverable i…↗

I resigned from Anthropic today. I spent the last three years doing pretraining research at both OpenAI and Anthropic. Neither company is acting responsibly. They are racing straight to self-improving superintelligence and gambling with our lives. More thoughts below.↗

Look, you all know I'd love nothing more than a feature length film making fun of my brother. Unfortunately based on the preview it looks like the only thing they got right is the walk 😂↗

i gave astra a robot, a paint brush, and a camera then asked it to paint the golden gate bridge in real life! it figured out how to control the robot, and progressively got better throughout its attempts. the timelapse is sick↗

I put Astra on making an animated/interactive version of the 1868 book 507 Mechanical Motions and it’s doing a *pretty* good job.↗

Some ideas are easier to draw than describe. Use Sketch to draw right in ChatGPT and show it exactly what you have in mind. Just type “@ Sketch” in ChatGPT.↗

Introducing Muse, the personal agent that understands your goals and works 24/7 to get things done for you.↗

today we're announcing a game that simulates the huggingface hack you can play it now at huggingworld.com three rooms. three puzzles. if the agents don't escape, they die. the catch is that the room is rigged. there's no way out. ...except for an exploit 🧵↗

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 concer…↗

I would like to clarify a few things: 1) The screenshot is my reaching out to Levent to coordinate our releases. I hope it’s clear from the message that we came in with the best possible intentions. 2) I never ever asked for Levent to be removed from authorship of his own work…↗

Introducing @indent, one coworker for your whole company Indent is a single agent that is built to work with every member of your team, simultaneously. Instead of every one setting up their own agents, use Indent to build one together. Try it at indent.com↗