We’ve been putting a lot of effort into making Claude Code more responsive & reliable. Here’s an update on everything we’ve done:↗

Private MCP servers 🤝 OpenAI products Your team can keep MCP servers inside your network while ChatGPT, Codex, and the Responses API connect through outbound-only HTTPS. 🔗 developers.openai.com/api/docs/guide…↗

Research 1.2 is out now!↗

We've created the world's fastest PDF parser ⚡️ And it's more accurate than any other open-source, model-free PDF parser out there (pymupdf, pypdf, markitdown, pdftotext, opendataloader, pymupdf4llm) Introducing LiteParse v2 - we rewrote the entire library into Rust and adapte…↗

Slippery Slop We use agents for everything at Gumloop. This is not a brag. We're seeing efficiency boosts but it's also causing a whole new set of problems. We're experience "agentic growing pains" that a more standard company might only see in 6 months to a year from now. The…↗

Proud of this one. We shipped a new Institutional Holdings API. This data comes from 13F filings, which is a nightmare to parse at scale. You must normalize tons of data. Funds will report "BERKSHIRE HATHAWAY", "BRK", "BRK.A", and the CUSIP across different positions. Resolv…↗

Introducing the newest Coral board, for efficient, on-device AI! Check out the demos in the video: - On-board speech translation - Natural language controlling hardware - Vision & sound generating music↗

codex power-user best practices: - a few different "pulse" threads that run every morning to check the status of stuff i care about, e.g. proof metrics, all company meetings, etc - a "log" thread for ongoing, everyday activity i want to track. for me that's my "writing log"—wan…↗

Figma Make, now on your local code In limited beta starting today, you can visually edit and ship changes by connecting Make to your codebase At Figma, we use our products to design in every way: design layers, prototypes, and now, production code↗

Introducing the Cursor Developer Habits Report. We’re sharing some of our findings on how software development is changing. It’s based on the most comprehensive dataset on AI coding in the world, across all model families.↗

R&D Part 1: Here to Win↗

Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the ability to work independently for longer than its predecessors. Available today at the same price.↗

New in Claude Code (research preview): dynamic workflows. Claude writes an orchestration script on the fly, then spins up a large fleet of coordinated subagents in parallel to take on your most complex tasks. Use the word "workflow" in a prompt to get started.↗

We've raised $65 billion in Series H funding at a $965 billion post-money valuation, led by @AltimeterCap, Dragoneer, @Greenoaks, and @sequoia. This investment will help us advance our research and expand our capacity to meet growing demand for Claude.↗

Opus 4.8 is a GAMECHANGER Here's the full vibe check from @every:↗

How are coding agents changing software engineering? Yapped for 15 minutes about new Cursor data we published, including: 1. Why lines of code is an imperfect measure of AI progress 2. Balancing intelligence/cost/speed for models 3. Code reviews with "Mega PRs" (1000+ lines)↗

Before we ship a new model, these teams try to break it. They build with it, push it to its limits, and tell us where it falls short. What they find makes the final model better.↗

Opus 4.8 launched and then it LIED TO ME (well, hallucinated 3x) great at one shot, but after that... no hype take now on yt: youtube.com/watch?v=h0gZf1…↗

someone hit me up about the new "claude dynamic workflows" feature, claiming "see, multi-agent works" But really, the launch of this feature proves the exact point that I made back in June of 2025, along with @walden_yan, @tobi, @karpathy, and many others: Deterministic workflo…↗

Google's free 5-day AI Agents course is back, and this time it's all about vibe coding with agents. The last one had 1.5M learners. Here's what the course covers: → Day 1: Agents + vibe coding. Build agents with Google Agents CLI and your coding agent. → Day 2: Tools + intero…↗

Notes on Claude Opus 4.8, plus pelicans riding bicycles for each of the five different thinking efforts simonwillison.net/2026/May/28/cl…↗

Struggling to pick what agent, model, and effort levels to use? Miss the "slot machine" feel of Claude Code when using other tools? `npx slotslop "[prompt]"`↗

Introducing Impeccable 3.5, the best way to design in production: iterate on real UI with your AI agent, in the codebase you actually ship. Turns out many popular design skills, including Impeccable and Anthropic's frontend-design, weren't actually very good at...design (the wor…↗

I smell a takedown in 3...2...1 clawd.rip↗

I understand the concern of skills atrophying when using agents. But so far I am not seeing it. Instead I have learned all sorts of dark secrets of linux networking I somehow didn’t learn before agents building a networking product.↗

One thing people underrate about the smart zone: It's a great way to save on tokens. When you're in the dumb zone, sending 600K tokens on every request gets expensive FAST Yes, you get charged for cache hits. Less, but it still adds up.↗

I've been using state-of-the-art models to teach small models running on my computer how I work. The result : a personal agent that runs my inbox, my deal pipeline, my blog, my calendar, & my research. 🧵↗

Windows users, this one’s for you. Computer use now works on Windows, so Codex can take action on your Windows computer. And with Windows support for Codex in the ChatGPT mobile app, you can start, review, and steer tasks on the go while work continues on your Windows machine.…↗

pierre.computer/writing/on-ren…↗

this codex prompt is literally the best thing ever if you are building react apps and want the cleanest possible code simply run "/goal run npx react-doctor@latest and fix issues until you get a score of 100. do it properly without taking any shortcuts" in codex thank me later↗