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.↗

iPhone Duo iPhone 18 Pro and iPhone 18 Pro Max Apple Watch Series 12 and Apple Watch Ultra 4 AirPods 5 … and Joz https://t.co/TWj3GjDSmk↗

they named a phone after me and made it bend over 😭 https://t.co/ouC7qtEaVF↗

We're publishing our most detailed threat intelligence report to date. It covers how people tried to misuse Claude—for cyberattacks, influence operations, surveillance, biology, and building weapons—and how we found and stopped them. We disrupted every operation in the report…↗

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. https://t.co/AvQlEZNxR0↗

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. https://t.co/gCGBuDCJPP↗

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 https://t.co/BfiiXvafRA↗

GPT-Live-1 is now available in the API. Bring ChatGPT’s natural back-and-forth to your app, with voice agents that listen while they speak and work with the models and harness you choose. https://t.co/gIl1gwsBDV↗

Now everyone can put data to work. We’re introducing a new Data agent in ChatGPT Work so you can turn your company’s data into answers, interactive dashboards, and action—just by asking. Just add the Data Plugin in ChatGPT Work, connect to the data sources and context you alre…↗

GTA 6 made by GPT 6 90 hours. https://t.co/pGbd3L2vAb↗

I can’t stress enough how little an idea matters compared to the agency of the people executing the idea. I have had the privilege of knowing and sometimes even working with some of the most successful people (by various metrics). The difference between mediocre and excellent…↗

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…↗

Introducing SWE-2, our closest model yet to the frontier. On leading evals, it scores on par with recent frontier models – at up to 70% lower cost. We scaled RL to multiple trillions of parameters, with a refined recipe that pushes the Pareto curve on both capabilities & c…↗

New in Claude Code: claude plugin eval See what value your plugin is adding, or if it needs more work. You can create test cases, run your plugin or skill against those test cases, score those runs, then run each case again without the plugin to see the differences. https://t.…↗

AI Engineering Skills Map: Shaping the build When you’re skilled at AI Engineering, your best work won’t be merely implementing a product that someone else spec’ed out. Instead, you will actively shape the build. Before modern AI tools accelerated and expanded what a single de…↗

Go from idea to a working agent faster with the Agents API. Build and run cloud agents with the Codex harness, fully managed by OpenAI. We handle orchestration, long-running sessions, and context management. You focus on what makes your agent unique. Available in public beta.…↗

This is Knap. It's a new language I created that turns data into Markdown. The syntax should feel familiar and comes with wonderfully pleasant features to modify and format plain text. Knap is open source. Over a million people already use Knap directly or indirectly because it…↗

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 belie…↗

Introducing Super Smash Royale, my best creation yet Play Battle Royale in the browser with 45 characters from Melee + Brawl Built in a few days with GPT-6 Astra, @ElevenLabs, @MeshyAI, @Blender and @threejs Solo, multiplayer, and controller support smashroyale dot io https:…↗