ChatGPT is now available as an add-on in Excel and Google Sheets. It can help analyze messy data, write formulas, update spreadsheets, and explain what it’s doing along the way—without leaving your spreadsheet. Powered by GPT-5.5. chatgpt.com/apps/spreadshe…↗

Today is 5/5! GPT-5.5 shipped 12 days ago, and the community love has been amazing. ✨ Revisiting a few first impressions we hadn’t posted here before seeing more of you tonight at 5:55. First: @clairevo gave GPT-5.5 a backlog of bugs, and it did “a 98% job all by itself.”↗

Me and codex were busy. 🔊 sonoscli.sh — Sonos 🗃️ wacli.sh — WhatsApp 🪶 birdclaw.sh — X archive 🧰 gitcrawl.sh — GitHub archive 🛰️ discrawl.sh — Discord archive 🎧 spogo.sh — Spotify 💬 imsg.sh — iMessage 🧳 mcporter.sh — MCP to CLI 🗣️ sag.sh — ElevenLabs voice 🧿 …↗

We're not here to chase the AI money, and we're not here to write sloppy code. We're building the thing that comes after git. @conradirwin shares what we're doing and why: zed.dev/blog/not-build…↗

“What’s your investment approach” is a question that comes up now and then. I think this convo with @jacksondahl is the most true-to-myself answer I could put on the public record (from @DialecticPod)↗

one of the things I'm doing now that weren't possible without AI is OPINIONS.md I get a ton of value and believe everyone should create one. I manage mine with Hermes agent from @NousResearch and gpt 5.5 shared my full OPINIONS.md and setup in …↗

i would like to talk to people who have built amazing things with 5.5 that weren't possible with earlier models. i am especially interested in examples that took ludicrous token budgets. thanks.↗

now, your agent can fix itself. introducing raindrop triage. an agent for finding and investigating agent issues.↗

Introducing PostHog Code, the product editor that: - Understands your product - Identifies usage patterns - Triages bugs and errors for you - Creates PRs to fix them - Continuously monitors and improves your product Join the waitlist: posthog.com/code↗

Steal this Codex-native email workflow from @danshipper: 1. Write a one-page operating manual for your inbox Include: - VIPs - what to auto-archive - what to summarize - scheduling rules - escalation rules - your reply style 2. Open an agent-native email tool in Codex Dan use…↗

GPT-5.5 Instant is starting to roll out in ChatGPT. It’s a big upgrade, giving you smarter, clearer, and more personalized answers in a warmer, more natural tone. And it's also more concise, which we heard you wanted. We think you'll love chatting with it.↗

Introducing SubQ - a major breakthrough in LLM intelligence. It is the first model built on a fully sub-quadratic sparse-attention architecture (SSA), And the first frontier model with a 12 million token context window which is: - 52x faster than FlashAttention at 1MM tokens -…↗

we built pookie it's a helper that lives inside Slack it can search messages, generate memes, run code, and connect to your tools (Linear, GitHub, Stripe, even my bank!) fully open source and self hostable↗

New for financial services: ready-to-run Claude agent templates for building pitches, conducting valuation reviews, closing the books at month-end, and more. Install them as plugins in Cowork and Claude Code, or use our cookbooks to run them in production as Managed Agents.↗

Ever feel like every twelve seconds a new AI tool comes out and you have to rethink your whole approach to work and life? Or maybe you've already spliced the best bits together and vibe coded a harness that's super-customized to your particular human brain. At @PWVentures, we've…↗

I've spent the past few weeks reading 100s of public data sources about AI development. I now believe that recursive self-improvement has a 60% chance of happening by the end of 2028. In other words, AI systems might soon be capable of building themselves.↗

It's been quite a week. Good stuff is coming though. I hired a team! openclaw.ai/blog/openclaw-…↗

PostHog's next chapter Building PostHog has been living the dream. We got into YC. We pivoted a bunch. We found product-market fit, onboarded hundreds of thousands of customers, and revenue grew fast. Best of all, it's been fun. We found a [way of working we really like](…↗

Introducing the Codex iMessage Handoff skill github.com/gragland/codex…↗

developers.openai.com/codex/migrate↗

What if chat is the wrong interface for managing agents? In this talk, @steveruizok shows what changes when agents move onto a shared canvas instead of staying trapped in a linear thread. Using tldraw's Fairydraw experiment, where users collaborated with three "fairies" coordin…↗

Nope. The AI you use right now is UI that talks to APIs.↗

My first pi extension: /feedback. For the novels that models tend to write. It writes the last msg to a .md in your session and opens it in $EDITOR. If you save it with changes, it injects a [Feedback] token. The token is replaced with a small prompt + the diff. Works great!↗

Writing release notes is fun if you enjoy spelunking through recent ships, commits, and agent sessions. For everyone else: Dispatches. Now live on Entire Web. Scope recent work by repo and date range, then turn it into a markdown update your team can actually read, because appa…↗

i built localterm run a terminal in your browser npx localterm@latest start↗

Today we open early access to @Zapier's next product We've been using it internally for months (>1,000,000 actions executed so far) and it's completely changed how we work. We're letting a small group of AI-forward teams try it first and give feedback. Who we’re looking for:…↗

After open-sourcing the terminal, we started asking... what else should we open-source? Well, now we've open-sourced our docs. Docs lead @hongyichen wrote about how we migrated from a CMS to a GitHub repo of Markdown with @astrodotbuild. The proof-of-concept took just 3 hours.↗

Introducing deepsec, an open source coding security harness. • CLI-first • Sandbox-based scaling • Pluggable coding agents • Designed for large-scale repos • Use AI Gateway or your own subscription After months of successful internal use, we put it to the test on some of the la…↗

pro tip: just run this in your terminal and your computer wont sleep↗

$1B to Back Founders Building the New Economy I’ve been following the flow of assets my entire career, and this is the most dynamic period in technology and finance I’ve ever witnessed. The founders rethinking financial assets and markets have always had to be bold. They operat…↗