DeltaDB is a new, Git-compatible version control system for agent context. It keeps every edit linked to the conversation that produced it. @as__cii takes a deep dive into how we built it with Rust, SQLite, and Durable Objects: delta.dev/blog/fine-grained-…

interpretability might be the most important scientific problem in the world right now, as I don't think we can solve alignment if we don't know what we're building. I think I have good news about it. I co-authored early work in mechanistic interpretability at OpenAI and came away pessimistic, because neural networks appeared to fold into arbitrary tangled knots. years later, I started openai's first large-scale automated interpretability project, finding about 2% of neurons legible with the primitive tools we had with modern agentic tools and a much closer look, the picture looks totally different. the vast majority in models up to trillions of parameters are legible, and their circuits beautiful. many famous examples of tangled neurons turned out to be misunderstood. The roadblocks I expected mostly aren't there. I now think ambitious interpretability will be solved by the time we need it most, and possibly quite soon, as automated scientists keep improving. it may be a bitter lesson for interpretability: the simple thing, at absurd scale, works already-clean.goodfire.com/

We've wanted to build this since we founded Zed - a new collaborative development workflow without all of the limitations of pull requests. Over the past few months, our team has made the the switch, and it's been so cool.

Today we’re introducing Delta. Delta is a multiplayer environment for coding with agents and reviewing what they build, powered by DeltaDB. The first invites to our private beta are going out now. zed.dev/blog/introducing-del…

We've shipped more than a thousand versions of Zed, but all of them began with zero. Today, that changes. zed.dev/blog/zed-1-0

Parallel Agents just shipped. Mix and match any agent, run them all at once, and manage everything from a new Threads Sidebar. Claude Agent, Codex, Zed's agent, or anything on ACP. One window, across all your projects. zed.dev/blog/parallel-agents

Zeta2 is here. 30% better acceptance rate than Zeta1. 200x more training data, LSP-powered context, faster predictions, open weights. Try it now in Zed. We didn't just improve the model. We rebuilt the entire data pipeline behind it: zed.dev/blog/zeta2

I'm really glad to be working with Baseten. Their inference stack is fast and reliable, and their team is *super* smart. It's been really helpful to consult with their ML engineers while iterating on our edit prediction model.

It's finally here. Zed is available on Windows. Built from scratch, and rendering at 1 million pixels/millisecond. Download it today 👇

🚀 New in Zed: Bring your own agent, starting with @Google’s Gemini CLI. → Try Gemini CLI with full code context in Zed → Build & run multiple agents in your editor → Powered by the new Agent Client Protocol (ACP) Learn more: zed.dev/blog/bring-your-own-…

Zed for Windows: What’s taking so long?! From rendering to crash reporting, we’ve been heads down fixing the tricky parts. Here’s what we’ve been up to → zed.dev/blog/windows-progres…

The Ruby ext v0.7.3 for @zeddotdev is out! This update improves DX with a new LS activation sequence: Gemfile → PATH → User gemset → Own version (see docs). Over 110k installs so far - that's incredible! Thank you all!

2.5 years into the AI craze, and I continue to firmly believe that if your company wasn’t already interesting/succeeding without AI, then doing “whatever plus AI” isn’t going to save you. For the few that seem this way (eg Cursor), I think their moat is a lot weaker than it seems. You have to play the game and the game is AI, but I don’t think it’s a defensible foundational capability. Might play out as an excellent land and grab strategy to buy you time to fill out the meat though.

One of those VC-backers here :) You asked, and @zeddotdev delivered! Check out the latest release: zed.dev/releases/stable/0.17…

<physicists cooking> 👩🏻‍🔬👨🏼‍🔬 we have stabilized the potato tokamak … potokamak

Exciting news! Zed now has native Git support starting from v0.177. Designed for speed, Git-native functionality, and a keyboard-first workflow.

Going to do a live Twitch broadcast in 90 minutes about @zeddotdev's new native Git integration! I'll be talking with some of the people who built it - @maxbrunsfeld @radgendervibes @iamnbutler - feel free to come say hi! (I'll post again when we're starting. Link is in reply!)

🤯🧐 7B open-source model deployed in prod?! Yep. The @zeddotdev team finetuned Qwen2.5-Coder-7B to power their new code completions feature. They also open sourced the model + dataset! 🔥 Get it for your own projects through LM Studio: `lms get zeta-gguf` 🚀7️⃣🅱️

Also, can we talk about how beautiful are the designs that @danilobleal produced for this feature? I mean, check this out

We engineered Zed to be instantly responsive, but what's faster than instant? Anticipating your next move. Introducing edit prediction, powered by Zeta, our new open-source language model. 🚀