major price cuts today: *80% drop for GPT-5.6 Luna, now $0.20 per million input tokens and $1.20 per million output *20% drop for GPT-5.6 Terra, to $2/$12 *GPT-5.6 Sol gets Fast mode in the API, up to 2.5x the speed for 2x the price, same intelligence https://t.co/erC6u4VoDR
After deployment, we applied GPT-5.6 Sol to advance the frontier of efficiency by making itself more efficient to run. The results: - 20% lower serving costs from production GPU kernel improvements. - 15%+ better token-generation efficiency from improved speculative decoding.
THIS HAS TO BE THE STORY OF 2026 Ken Griffin’s Citadel was pushing surprise-rate-hike fears just days before the AI trade collapsed and forced 4x-levered Leopold Aschenbrenner's Situational Awareness to unload its book near the lows. Citadel then reportedly bought most of thos…
We quietly released the open-source Codex Security CLI, but Hacker News found it before we had a chance to share it here... You can now use it to scan repositories, track findings across runs, verify fixes, and add security checks to CI/CD. This is an early release, and we're…
Here is the full letter Leopold sent to his LPs last night. Rumors of his demise are greatly exaggerated. https://t.co/5yIzR0DKIp
GPT-5.6 Sol has been used to solve open problems in mathematics. So why was it struggling with ARC-AGI-3, a benchmark of 2D puzzle games? We investigated. The harness was not letting it remember what it had learned. We found that enabling two API settings tripled our scores w…
We support this petition, signed by our CEO, several co-founders, and senior staff. Our own research on recursive self-improvement, published last month, points to the need for tools to deliberately pace the frontier of AI development so society can prepare. We’re glad to see …
Introducing Applied Electrodynamics. What would the world look like if we could see beyond visible light, across the entire electromagnetic spectrum? The way waves interact with matter, at every wavelength, encodes far more than just shape and color. It reveals internal struct…
lol did nobody at Anthropic stop for a second and wonder why the numbers looked this absurd before posting the “victory”-tweet? https://t.co/DPdPc04YZT
I tried asking myself what I'd learned after 40, and it turned out to be a lot of the most important stuff I know. At least 90% of what I know about startups, because I was 40 when we started YC. Plus everything I know about parenting and most of what I know about writing.
T3 Code is now available on iOS and Android. Run “npx t3 connect” in your terminal, install the app, and now you can control Claude and Codex fully remotely. Still 100% free. Still 100% open source. Enjoy 🫡 https://t.co/EBBPfdf3Pz
wdym this isnt good ux https://t.co/olnIh2VRPq
Video Podcast is live. Turn any doc, link, or idea into a two-host video show with studio scenes, multi-cam cuts, and B-roll. Ready in minutes. Everyone else stops at audio. This is a show you can publish. Try it: https://t.co/mwV67pFCDT https://t.co/ccByT6230Y
I always add this to my AGENTS.md https://t.co/owCKiM9p4v
Some more detail on the ROIC Intelligence App I built yesterday and mentioned on today's earnings call. I took the PDF that Brian Nowak at Morgan Stanley put together for Hyperscale ROIC this week and used Copilot code (coming in our new superapp) with a single prompt + skill (…
Cursor is now on iPad. All the power of Cursor on iPhone, with more room to work with agents. https://t.co/BKzS0eTUjr
Today, we are releasing Inkling-Small. Inkling-Small achieves comparable performance to Inkling at a quarter of its size. It features 276B total parameters, 12B active. We are making the full weights available. https://t.co/BtYNcpkDRA Fine-tune it on Tinker today, or chat wit…
Launching Copper, a Mac app for capturing things you want to keep and prompts you want to try next while working with AI. The more I use AI, the more I find myself collecting little things I don't want to lose. You're in ChatGPT and think, "I'll need this later," but you don't…
New project I built over the weekend with Grok Build: ~npm i drawesome It's the easiest way to add drawing tools to any React app with a simple, delightful toolbar. Smooth animations, thoughtful details, plenty of customization. Fully open source. Zero dependencies. https://t.…
Introducing Replit Design. The next era of design, for everyone. https://t.co/cLH5e1XAu5
Ranked by when the bookmark was saved during this London date range. Saves means the post's public bookmark count on X, not saves on this site. Metrics are X's latest public counts; older items can be stale once they leave the recent-bookmarks sync window.