Today's Training Data episode takes us BTS on the infrastructure challenges required to do large RL runs at scale, featuring @ellev3n11 (Composer Lead at @cursor_ai) and @dzhulgakov (Co-Founder at @FireworksAI_HQ). The Cursor team trained Composer 2 on Fireworks by starting with…↗

We’ve shipped a security-guidance plugin for Claude Code that helps identify and fix vulnerabilities as you’re writing code. Available for all Claude Code users. Install from the plugin marketplace (/plugins).↗

Today we’re releasing DeepSWE, a new standard for agentic coding benchmarks. On public leaderboards, top models often look relatively close in capability. DeepSWE shows where they actually diverge, reflecting the realistic experience of developers in their day-to-day work.↗

Excited to release 🌟Polar🌟, our Agent RL rollout infra for real-world harnesses. Be it Codex, Claude Code, OpenClaw, Hermes, or your self-made ones 🔥 -- Polar takes your harnesses directly as training environments without code change. Find a problem, design the harness, and…↗

Codex, Claude Code, and Cursor are all great tools. They're also much more different than you think. I did a comparison of the three, but not in the usual way. I went deep on how they differ philosophically.↗

From the board to building the Software Factory Why I’m joining Factory.ai from venture Four years ago, I decided that the best way to fix engineering wasn't to continue leading an AI team, but to shift to[ venture and prove that engineers could redefine capital flow to solve t…↗

the basic trick to using Claude Code for non-technical work is to put a bunch of files in a folder and tell it can write scripts + make HTML↗

Introducing Mainframe: turn agent work into videos your team can keep up with.↗

Over 1 billion PDFs are created every day, but your agents still can’t read them reliably. Today we’re releasing Parse 2.0, the most accurate document parsing API in the world. Extend already processes millions of pages daily for leading AI teams like Brex, Mercury, Opendoor,…↗

Software After Software 1. Everything is changing. 1.1. We are in the midst of a transformation so large that nearly everything we assumed to be true about how software and business work must be rethought. 1.2. It will take years to play out. 1.3. The end game is not yet appa…↗

More musings after some people got upset about the word clanker. lucumr.pocoo.org/2026/5/26/clan…↗

My biggest takeaways from @danshipper: 1. The future of work will happen inside Codex or Claude Code. Instead of putting AI into your SaaS tool, you’ll use your SaaS tools inside your favorite AI agents' in-app browser. Dan spends all his time in Codex now—writing documents, man…↗

Anthropic co-founder Chris Olah was invited to speak at today's presentation of Pope Leo XIV's encyclical "Magnifica humanitas." Read the full text of his remarks: anthropic.com/news/chris-ola…↗

In case you didn't get a chance to explore the doc site I built for glimm.dev - it's a react library for shader-driven page transitions↗

When i was creating my website i couldn't find a simple well designed video player so i created mine, I decided to open source it and spent the weekend working on it. I hope you enjoy it like i do, simpleplayer.grizz.fyi↗

codex prompt tip 13 "read my past 400 slack messages, identify my personas and make a skill on how to message people one each one, then do the same thing for emails and twitter so you jnow how to write in my voice"↗

How to use Codex's computer use in EU for europoors better than nordvpn - download Tailscale on your device(s) - go to settings - configure mullvad - pay 5$ a month - set exit node US based - now you have a VPN for each node - Albania for ur tv (no ads on entire home network)↗

Has been a while since I wrote about agentic engineering, so this time around some learnings of maintaining Pi as a junior maintainer to @badlogicgames :) lucumr.pocoo.org/2026/5/24/pi-o…↗

Anthropic onboarding day: Michael Scott introducing Karpathy like he just signed Wemby in free agency.↗

My conversation with @RickRubin 0:00 Less Is More But Harder 2:00 Def Jam From The Dorm Room 4:00 Capturing Club Energy On Record 6:00 Going Deep On Influences 12:30 Why Reduced By Rick Rubin 14:00 Beatles Structure Meets Rap 16:00 The Ruthless Edit 19:30 Eminem: The Most Obsess…↗

"We used to say build the MVP. Now you should build the system that builds the MVP first." Here's my new episode with @ryancarson where he shared how he runs his startup solo with AI agents: ✅ OpenClaw as his AI chief of staff to triage emails, book meetings, and do sales outre…↗

Automation is a lie. CLIs are over. The SaaSpocalypse is dumb. A year ago @danshipper came on the podcast to predict where AI was heading. He was remarkably right—including the call that everyone was sleeping on Claude Code. Dan has a unique lens into where things are going bec…↗

Hyper - an API framework as source, not a dependency ⚡ Built on Bun. Inspired by @shadcn - Your code, your repo. No framework in package.json - One route → runtime + OpenAPI + typed client + MCP - Add only what you need: `hyper add core auth-jwt rate-limit` bun create hyper my…↗

UPDATE: Came up with an even better version of this prompt after the feedback Ask Codex to look across your sessions, Memories, and Chronicle, identify patterns, reuse what already exists, and only create the smallest useful skill, subagent, or automation. "Look back over my re…↗

This conversation with @RickRubin is special. Here's a 2 minute preview that I’ve watched 15 times. The episode will be out tomorrow:↗

Chris Hohn did a 90-minute sit-down with Nicolai Tangen and then dropped an investor letter the FT got hold of last week. You’d think the guy who printed a record $18.9B last year would be doing victory laps. Instead he’s quietly rewiring his whole portfolio. My favorite takes…↗

I always wanted a GitHub dashboard: See my repos, open Issues/PRs, what version I released last, how many commits since last release. So I built one for everyone. release.bar/steipete↗

I've been maintaining a global AGENTS.md file for over a year now, making small improvements as I learn new tricks to improve AI agent behaviors. Published an anonymized copy of it here: github.com/zeke/agents.md↗

$NVDA CFO: "Many of the companies, for example, are sitting here going, oh my gosh, the memory price went up. We knew that was going to happen. That was something everybody should have, at least we did, ordered a long time ago. On the most significant memory, we’re actually worki…↗

I simply don't understand what people have in mind when they say stuff like this. What we have is extremely capable computer use agents. They will continue to get better at computer use. But how does a capable computer use agent 'take over' and why haven't they done that today?↗