New plugin alert! The Kernel Browser plugin lets your agents create and control remote browsers and while showing you an in-app preview of them at work!↗

Today we're announcing Base Labs, a dedicated research organization focused on advancing open-source AI. We believe in a healthy, open frontier model ecosystem. To enable this, we are working on: - Blue-sky research on continual learning, the science of RL, and how models learn…↗

GPT-6-Astra Benchmarks ARC-AGI-3 - 98.6% FrontierMath Tier 4 v2 - 97.6% DeepSWE v1.1 - 74.1% ExploitBench - 100%↗

Today we are releasing our speculative decoding implementation in our inference engine uzu. Initially for Qwen3.6 27B, with support for Qwen3.8 27B and Muse Glimmer coming soon. On Apple M5-series chips, we outperform MTPLX (MLX + speculative decoding) by almost 2x, and llama.c…↗

gpt-6-astra gpt-6-astra-aeon ^ new slugs added to a statsig feature flag that appeared ~30 mins ago in Codex Desktop "aeon" means "an immeasurably or indefinitely long period of time, an age, or eternity"↗

New OpenAI repo with a Lean formalization by GPT-6-Astra proves that there are infinitely many pairs of consecutive primes whose distance is at most 186 github.com/openai/PrimeGa…↗

New episode with Matan Grinberg (@matanSF), CEO & co-founder of @FactoryAI !! We get into so many good topics: Studying physics for a decade, how to measure ROI of AI spend, who to hire in a world where we don't code, policy, the risk of Chinese open models vs. closed-model mono…↗

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[Channels Mariah]: It's tiiiiiiiiiime! Today @every is releasing Compound Writing, so now you - yes, you - can install my tendency to overthink a paragraph. I started this past winter by pulling down the Compound Engineering plugin and telling Claude (4.5 at the time, what a m…↗

PSA if you're using Claude Code within @get_bb_app: BB uses a local proxy, so Claude Desktop's “load tools when needed” setting doesn’t carry over to BB-launched sessions and Claude loads every MCP tool schema upfront. For me, that meant 167k tokens already filling the context…↗

Claude can now use your computer in the background in Claude Cowork and Claude Code. Give it something to do on your desktop and Claude clicks, types, and opens apps just like you would, while you work on something else.↗

Playgrnd® beta is live. No account. No paywall. 100% free. 32 tiny tools for making weird, beautiful things, with new ones dropping every day. Animate in one click. Dither everything. Export SVGs. Go make something weird. 🛝 playgrnd.tools↗

Introducing Gemini 3.8 Flash, another jump in Gemini's agentic + coding capabilities, and our 3rd updated Flash model in only 6 weeks... This model has been a ton of fun to work with, excited to see what you all think!↗

Muse Spark 1.3 is rolling out today with frontier performance almost too cheap to meter. This is the biggest jump we've made so far on coding and agentic work. Try it in Muse Code and our API. Next up 🍉 and Muse Spark open weights releases coming soon.↗

i really hate to say it, but… gemini who? 🏎️💨↗

Aaaaaaand we're live! diiverge.co A persistent, infinite, point-and-click adventure. Every picture is a fork. Click something in it, decide what happens, and the world grows in that direction.↗

A prompt to stop Claude from speaking in parseltongue. “Please remove all mannered prose.”↗

loving have @paper + fable make variant sheets↗

Made a sketch artist game where you have to draw the character based on witness testimony neal.fun/unusual-suspec…↗

I’m excited to finally announce the newest edition my Stanford course 𝗧𝗵𝗲 𝗠𝗼𝗱𝗲𝗿𝗻 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿. It has been 9 months in the making. Last November, with the release of Claude Opus 4.5, coding agents experienced a step function improvement in capabil…↗

Super early preview of what I'm spending all of my Fable 5.1 tokens on. A GTA-style open-world multiplayer game, set in NYC. Fable will iron out some kinks over the next day or so, and then you all can play it! I'll keep the loop going so it keeps getting better.↗

We’re launching tldraw flash, a new way to animate hand‑drawn ideas on the infinite canvas. Draw a shape, press record, then drag to perform the motion. Trim clips on the timeline, export, and remix.↗

Throwing rubbish in a landfill is (usually) better for the environment than recycling it. With few exceptions, recycling ends up emitting more CO2 and costing more money, while landfills are cheap and secure. - Recycling mid-tier plastics (like plastic bottles or butter tubs) co…↗

FABLE 5.1 MARIO with HIGH EFFORT Best Mario benchmark ever↗

Sam Altman on OpenAI’s next model and the AI backlash I recently sat down with Sam for a two-part conversation. We covered a lot of ground: the need to slow down frontier research, alignment concerns, OpenAI's next big model, Astra, competition with Anthropic, his thoughts on an…↗

A few notes on Anthropic's new Claude Fable 5.1 - with Max thinking level I got the best SVG pelican I've had from any Anthropic model (at a hefty cost of $3.30!), which I then had it animate simonwillison.net/2026/Sep/1/cla…↗

OpenAI’s Astra AI uses a new reasoning approach called “recurrent depth.” Though it can help model costs and performance, researchers are concerned bc it obscures a model’s thinking process, making it more difficult to monitor. w/ @amir @rocketalignment …↗

The ultimate goal is getting paid to be yourself. To solve problems you can't help but solve. To study what you can't pull yourself away from. To eliminate any work that does not challenge you creatively.↗

I heard ya'll like cute little animated vector characters?! opacity.com -> zoah.com↗

bb 0.41.0 is out. Fable 5.1 in the Claude Code picker. Also: scheduled sends, a concurrency cap, and the mobile app is now the web app in a native shell. npx bb-app@latest getbb.app/changelog↗