Gemini 4 Carbon Goes Wide, Anthropic's IPO Roadshow, and More
When Gemini 4 Carbon first showed up a couple of weeks ago, it was mostly a leaderboard story, since only a small group of cyber defenders could use it. That changed on Tuesday. Google opened Carbon to everyone on a paid plan. It's built for long-horizon coding, security, and science work, and Cursor says it's now #1 on CursorBench 4.0 at 60.4% on high effort (Cursor on X). The intro price is $2/$10 per million tokens until Nov 30, and then it goes to $4/$20.
The part I'm most curious about is the new /swarm preview in Antigravity. A coordinator hands work to parallel workers, each in its own git worktree, and adversarial verifiers check what comes back. That's the multi-agent setup a lot of us have been wiring together by hand, now built into the tool. Sundar also showed Carbon helping prove the Signal protocol's code all the way down to compiled device code (Sundar on X), and he built a 3D pelican game with it (demo). (Google blog · Antigravity /swarm)
What Else Happened
Claude got Whiteboards, Sheets, and Data, plus full apps inside the chat. Anthropic started rolling out a shared whiteboard, a spreadsheet builder that writes formulas from plain language, and better data storytelling. Interactive connectors now open full versions of Adobe, Atlassian, and Box next to the conversation, so you can edit by hand or let Claude do it. It's a pretty direct move on Office-style work. (Claude launch · Interactive connectors)
Anthropic kicked off its IPO roadshow at $70–$78 a share, under the ticker ANT. It's offering 825 million Class A shares on Nasdaq. CNBC's sources say pricing lands Nov 18 with trading on Nov 19, at up to about $1.4T fully diluted and roughly 20% going to retail. A separate $26B placement goes to Google, Nvidia, AMD, Microsoft, Broadcom, and others. The clip that got shared the most was Dario predicting that cancer and Alzheimer's could be "relics" within a decade. (Anthropic · CNBC · Amodei clip)
Chrome, Edge, Firefox, and MDN shipped Modern Web Guidance 1.0 for coding agents. It's a cross-browser agent skill with 203 expert-reviewed guides covering about 250 web platform features, and it pushes Cursor, Copilot, Codex, and others toward native HTML and CSS (dialogs, container queries, and so on) instead of piles of custom JS. Version 1.0 adds a legacy scanner that finds safe places to modernize an existing codebase. You install it with npx modern-web-guidance@latest install. This is the one I'd try first. (Chrome blog · GitHub · Chrome for Developers on X · Sarah Drasner)
Cursor rebuilt Projects for multiplayer. Teammates and their agents now work in one shared workspace, and your agents can coordinate with your teammates' agents. (Cursor on X)
Disney signed a multi-year generative AI deal with Adobe. Adobe will build custom Firefly and Foundry models trained only on Disney's own characters, worlds, and styles, and a sketch-to-concept-art tool is already in use at Imagineering. Artists are pushing back hard, given this year's layoffs. (Cartoon Brew)
Figma Motion got style previews, physics-based springs, and Lottie export previews. Springs alone make it a lot more useful for real UI motion work. (Figma on X)
Fable 5.2 landed in Framer's agent chat. Framer also posted a guide to connecting its MCP to Claude, Cursor, ChatGPT, and more. (Framer on X · MCP guide)
ChatGPT opened Businesses in ChatGPT as a beta. Businesses can claim a listing, see engagement insights, and build a Business Agent. Separately, ChatGPT Business plans now work in Notion, v0, Amp, Warp, and more through Sign in with ChatGPT. (OpenAI · OpenAI Devs)
Google DeepMind showed Gemini Robotics 2.5. It learns hundreds of everyday skills, from folding laundry to sorting car parts. (Google DeepMind)
WorkflowArena is a new benchmark of 145 long-horizon tasks for multi-agent orchestration. Claude Opus 5.5 fully finished only about 37% of them, which is a useful reality check next to all the swarm launches. (Einsia)
Linear added quick PR reviews. Look for the ⚡ in your reviews inbox to spot simple changes. (Linear)
T3 Code is spreading by word of mouth. Gergely Orosz watched devs at the Linear London launch convert each other to Theo's multi-agent coding app on the spot. (Gergely Orosz)
Things People Built
- Chimera – a physics-based vocal synth in the browser that models the vocal tract as branching tubes and animates a wireframe singing head. Gavin Purcell handed the repo to Fable 5.2 and got a striking music video back.
- Painting with Fable 5.2 in code – Jake Eaton has the model invent artist personas and render paintings with hundreds of thousands of simulated brush strokes.
- #OpenSourceHiggsfield winners – ComfyUI's contest drew 300+ open-source projects from 45+ countries, even after a cease-and-desist. ComfyUI Panorama Stickers took Best Overall.
- Wensity Skills – 13 frontend design skills for coding agents, 3 of them free and open source, available by CLI, MCP, or download (announcement).
What I'm Reading
- Lila Sciences' first open-endedness research – a vision post plus 4 preprints from Kenneth Stanley's team.
- The LLM writing-tics table – the chart that passed 26K likes, and a handy checklist for spotting machine prose.
Accounts Worth Following
- @jamesonhodge – Jameson Hodge builds Chimera and other music and audio experiments with real physics-modeling depth.
- @jkeatn – Jake Eaton at Anthropic, posting some of the most inventive generative art in code with Fable 5.2.
- @kenneth0stanley – Kenneth Stanley, the open-endedness pioneer behind NEAT and novelty search, now leading that research at Lila Sciences.
That's it for today. 👋