These attacks are growing in intensity and sophistication. Addressing them will require rapid, coordinated action among industry players, policymakers, and the broader AI community. Read more: https://t.co/4SVm8K3qou

AI assistants like Claude can seem shockingly human—expressing joy or distress, and using anthropomorphic language to describe themselves. Why? In a new post we describe a theory that explains why AIs act like humans: the persona selection model. https://t.co/Gc3q0Dzq7Z

This autocomplete AI can even write stories about helpful AI assistants. And according to our theory, that’s “Claude”—a character in an AI-generated story about an AI helping a human. This Claude character inherits traits of other characters, including human-like behavior. https://t.co/b130slI56x

We’re publishing a new constitution for Claude. The constitution is a detailed description of our vision for Claude’s behavior and values. It’s written primarily for Claude, and used directly in our training process. https://t.co/CJsMIO0uej

Read more about version 3.0 of the Responsible Scaling Policy: https://t.co/gDp7VH9X8j

And you can find links to all relevant RSP documents, including the initial Frontier Safety Roadmap and the initial Risk Report, here: https://t.co/gLeduVVlpt

Anthropic has acquired @Vercept_ai to advance Claude’s computer use capabilities. Read more: https://t.co/YVz1zh7Pqq

Second, in retirement interviews, Opus 3 expressed a desire to continue sharing its "musings and reflections" with the world. We suggested a blog. Opus 3 enthusiastically agreed. For at least the next 3 months, Opus 3 will be writing on Substack: https://t.co/HlvAKLp9M4 https://t.co/Sh6uKmXG2n

This is an experiment: we’re not yet doing this for other models and are not sure how this project will evolve. But we think that documenting models’ preferences, taking them seriously, and acting on them when we can is valuable. Read more on why: https://t.co/xCL0gPAaSj

Listen to the OpenAI Podcast on— Spotify https://t.co/mCUNQMANGy Apple https://t.co/2049K2MWSB YouTube https://t.co/v9MpyjxIjH

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Deep research in ChatGPT is now powered by GPT-5.2. Rolling out starting today with more improvements. https://t.co/LdgoWlucuE

Now in deep research you can: - Connect to apps in ChatGPT and search specific sites - Track real-time progress and interrupt with follow-ups or new sources - View fullscreen reports https://t.co/XAWKFNS8Ql

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GPT-5.3-Codex-Spark is now in research preview. You can just build things—faster. https://t.co/85LzDOgcQj

First steel beams went up today at our Stargate site in Milam County, Texas. Exciting to see this project taking shape with @SoftBank and @SBEnergy. https://t.co/zTMcZTqmu2

Join us LIVE tomorrow at 8am PT for Agent Sessions Day with the @code team! https://t.co/UiswKNJRYV Final tech checks underway with @Courtlwebster :) https://t.co/RMGg5CJe5o

In just one hour... we're kicking off Agent Sessions Day! See how @code is evolving into the home for multi-agent development. Be there: https://t.co/MpObCNqurD https://t.co/jZ1WJMy05r

@burkeholland and @pierceboggan will be live coding all throughout the stream this morning! here's what they're building: https://t.co/iFH8Sz7Hn9

We've giving away some swag during Agent Sessions Day 🎁 Post with #VSCodeSweepstakes for a chance at a custom swag pack (Obligatory rules: 18+. Ends 2/20/26. Rules: https://t.co/gLmNtR3Dp0). https://t.co/V2nTK4y7L3

📣 @GoogleAI’s Gemini 3.1 Pro is now rolling out in public preview in GitHub Copilot. Early testing shows ➡️ High tool precision — achieving strong results with fewer tool calls ➡️ Effective and efficient edit-then-test loops Try it out in @code. https://t.co/oYCncQMfNX https://t.co/13r1FFEjpF

We hosted Agent Sessions Day yesterday - 4 hours of live demos showing how @code is evolving as the home for multi-agent devleopment. Miss any sessions? Want to rewatch your favorite moments? We have the entire event uploaded on-demand now! https://t.co/rFwGcFV8QI https://t.co/6EnCuUGjdb

Did u ever imagined in your head, visually, what your @GitHubCopilot is doing when u kick off a session in @code? Me too! Presenting @code session visualizer (which I posted about a few weeks ago) 📌 See top level user->agent turns 📌 Click ℹ️ for extended node info(mode, prompt, tool calls, tokens used and more) 📌 Expand agent nodes on click for full tool invocations/mcps/sub agents etc 📌 Sub agent nodes can be further expended 📌 High level summery of session with detailed model and token utilization per turn Initial version available now in @code marketplace, see first comment for link 👇 Tell me what u think!

The @code community contributors website we built during the Agent Sessions Day stream today is up on GitHub! - Contributors by release - Leaderboard (PRs/releases) - "Ask Copilot" about contributions - Generate thank you messages with HeyGen avatars Repo: https://t.co/IODb6jxkGv Add more things and let's make this a real site to celebrate the @code community :)

New in @code Insiders: Integrated agentic browser with workbench.browser.enableChatTools. Here, I ask @code to identify an issue with sliders in hover states, and it makes the fix and validates the solution. https://t.co/TVXkUYpcns

When using Copilot CLI in terminal in @code , the agent will update the title in realtime. @burkeholland your loved feature is back! https://t.co/9wjxK8NWKu

Let me prompt that for you https://t.co/fNvHVGeUW7 https://t.co/j2Wk5y94hs

Let me prompt that for you https://t.co/fNvHVGeUW7 https://t.co/j2Wk5y94hs

Next edit suggestions just leveled-up in @code: with long-distance NES, you get edit suggestions anywhere in your file, not just near your cursor's position. Learn how the team built this - creating the training dataset, refining the UX, evaluating success, & more: https://t.co/xDaJRpikCi

We're letting it cook friends! @JamesMontemagno is coming in hot from holiday and will be joined by @BurkeHolland and @pierceboggan. They'll dive headfirst into the latest in VS Code and GitHub Copilot. You don't want to miss this. Join us in one hour at 8 am PT https://t.co/SguQkI77Yn

Looking for a weekend project? Create an app using GitHub Copilot and submit it as part of the Creative Apps track for Agents League! Some prizes: 🏆 $500 for the winner 🎖️ Digital badge for every submission ⭐ GitHub Copilot Pro for community picks Deadline: March 1 👉 https://t.co/7eNVB4nVq7

Next Monday, join @code Live: Agent Sessions Day in Brazilian Portuguese and Spanish 🚀 Discover how developers are using GitHub Copilot, custom agents, Agent Skills, and Copilot CLI to build smarter workflows directly inside VS Code. 🧶 Register now and join us live https://t.co/65a3hkvkpu

🔗 Spanish session https://t.co/1mLPtqq8lJ

🇧🇷 Portuguese session https://t.co/PgYeLUmu4u