Xiaobin Wu

@JaimeAlns @xai Thank you for everything Jaime!

It’s one of those: today was my last day at @xAI. xAI has been a tremendous formative experience for me, building the API, Grok.com, and everything in between, it’s been crazy and hectic, but overall amazing. I’m especially grateful to everyone I’ve worked with, @TobyPhln and the team in London, you’re the most talented team I’ve ever worked with. I’ll be cheering from the sidelines, really excited to see what the xAI team is going to come up with next!

@TobyPhln @xai @elonmusk Noooo! Toby!

Three years, thousands of PRs, and a million jokes. Today was my last day @xai. To the team: you rock, no one burns the midnight oil better. To @elonmusk, thanks for taking me on board. I've learnt more about execution, speed, and product perfectionism than I could ever have imagined. Thanks for everything. My next priorities: sleep for more than 8h, write down all the things I've learnt (I have a list), and then think about what I want to do next. @gork wdyt?

We’ve just launched something special for you! 🚀

must be doing something good

@jimmybajimmyba @elonmusk Jimmy! You will be missed! Wish you best luck

Last day at xAI. xAI's mission is push humanity up the Kardashev tech tree. Grateful to have helped cofound at the start. And enormous thanks to @elonmusk for bringing us together on this incredible journey. So proud of what the xAI team has done and will continue to stay close as a friend of the team. Thank you all for the grind together. The people and camaraderie are the real treasures at this place. We are heading to an age of 100x productivity with the right tools. Recursive self improvement loops likely go live in the next 12mo. It’s time to recalibrate my gradient on the big picture. 2026 is gonna be insane and likely the busiest (and most consequential) year for the future of our species.

@Yuhu_ai_ So sad to see you leaving Tony! Wish you best luck!

I resigned from xAI today. This company - and the family we became - will stay with me forever. I will deeply miss the people, the warrooms, and all those battles we have fought together. It's time for my next chapter. It is an era with full possibilities: a small team armed with AIs can move mountains and redefine what's possible. Thank you to the entire xAI family. Onward. 🚀 And to Elon @elonmusk - thank you for believing in the mission and for the ride of a lifetime.

@HeinrichKuttler @elonmusk 🤣 so true

@elonmusk This is the city of Memphis this weekend

@shayan_ 😢

I’m devastated. A good friend and dormmate of mine, Amin Pourfarhang, has been sentenced to death after protesting in Iran 😭 He’s one of the kindest people I’ve ever known. Please share. Visibility raises the cost for the Islamic Republic and may stop this execution!

@ericzelikman Congrats!

finally announcing i’ve started humans& w/ amazing friends @gharik & @YuchenHe07 & @TheAndiPenguin & @noahdgoodman & many other world-class folks. we're optimists: it’s possible to rethink how we build ai, to empower people to accomplish more together tldr: love is all you need

@elonmusk 🤣

🤣🤣

@theVincentStark great pleasure working with you Vincent, and so sad seeing leaving! Wish you the best, hope can fly with soon

For a bit more than a year at xAI, I’ve had the privilege and pleasure of working alongside the best engineers in the world on wild SOTA AI problems — building cool stuff, being intensely challenged, and growing every day 🚀 Today was my last day. I want to say a big thank you to @TobyPhln, who interviewed me back when we were just a handful of engineers and who I learned a lot from. And to @ibab, who convinced me to join and has been the best manager I’ve ever worked with. To @TheGregYang, @VastoLorde95, @tylervstorm, @phroo, @xiaobinwu, @dboedijono, @JimmyFraiture, @shayan_, and @512x512 — it was fun to cook together in the early days of Grok 2, and beyond. To @LiLiDuc22 from legal, for all the great discussions. To @TheNormanMu, who’s been an excellent partner and a great researcher. To red-teaming partners, @aje & many others. To @chaitu and @MichelleShieh, with whom I got to work on many exciting products. To our superstar supercompute team — @alsiens, @APrerepa, @TravisPepperAUS, @somani, and the rest of the crew. To @DMananniko56701 :nom-nom: And to everyone else I didn’t mention by name but who were amazing colleagues ❤️ @elonmusk, it’s been an honor 🫡 I’m incredibly proud of what we shipped together and excited for what’s next. Grateful for the journey. Onward 🚀

All the time🤦‍♂️

@dev_11217 I do

@xiaobinwu How do you guys use Grok to code at XAI? Via Cursor?

it is fast

We’re opening an office in Seattle Come join us! x.ai/careers

HACKATHON in SF @xai + @vercel September 11th, 5pm - 10pm REGISTER: partiful.com/e/sa3etfyhGd50… Build something wild, weird, or downright wonderful! Two Tracks, pick one: 1. Vibe Builder Prize - a more general category, many can fit here. UI friendly, fun category. 2. Interface Paradigm Prize - this one requires more creativity. for projects with innovative and new approaches to interacting with AI. Guidelines • Teams of 4 max. (form a crew on-site or roll solo) • Judged on innovation, functionality, and best use of xAI and v0 • Must be a confirmed attendee!

@statsig you need to be extremely clear about will OpenAI obtain any kind of access to your customer data, which is not mentioned anywhere from your announcement

Introducing Grok Code Fast 1, a speedy and economical reasoning model that excels at agentic coding. Now available for free on GitHub Copilot, Cursor, Cline, Kilo Code, Roo Code, opencode, and Windsurf. x.ai/news/grok-code…

SpaceX is doing the most amazing engineering work on the planet!

good luck tomorrow🚀