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xAI co-founder Tony Wu says he “resigned”, following co-founder Igor Babuschkin's exit in August 2025; Wu was in charge of reasoning and reported to Elon Musk

Tony Wu, one of xAI's cofounders, said he has resigned from Elon Musk's AI company.

The Information Juro Osawa

Discussion

  • @yuhu_ai_ @yuhu_ai_ on x
    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
  • @teortaxestex @teortaxestex on x
    Many people are leaving labs with tons of resources (while legends from pre-AI software are joining the labs). What is most remarkable to me is that the first group seems confident they'll build new companies outside. Anthropic folks are skeptical about that.
  • @ns123abc Nik on x
    Sir, our FOURTH co-founder has left xAI.." [image]
  • @alexia Alexia Bonatsos on x
    They're dropping like AI company co-founders.
  • @hadas_gold Hadas Gold on x
    Another xAI cofounder leaves the company. (caveat of there's lots of movement among AI execs)
  • @urvicodes Urvashi Jain on x
    After @SpaceX merger, most of the co-founders are quitting @xai , this isn't looking Good. Something is fishy 🤔 [image]
  • @graceihle Grace Kay on x
    Tony Wu is the fourth cofounder to leave xAI in the past year. He led the reasoning org and began reporting to Elon Musk last year. XAI underwent a reorg a few weeks ago and cofounder Guodong Zhang took over some of Wu's responsibilities, insiders said.
  • @theo_wayt Theo Wayt on x
    Another xAI co-founder is out Leading up to the SpaceX merger last week, Elon Musk had grown frustrated with delays to new Grok models, we've reported. https://www.theinformation.com/ ... [image]
  • @alvaromysterio Alvaro Mysterio on x
    Why is top talent leaving @xai ? @elonmusk [image]
  • @aiandcloudtech @aiandcloudtech on x
    Anthropic is still the only AI company that has managed to retain 100% of their cofounders.
  • @umbisam @umbisam on x
    Wow. YTW is a xAI co-founder. My guess: team didn't like the X merge first & SpaceX acquisition later.
  • @llmjunky @llmjunky on x
    xAI seems like it's completely cooked. I don't know how you can recover at this point. Grok 4.2 is going to be dead before it arrives. Kinda sad.
  • @yuchenj_uw Yuchen Jin on x
    xAI co-founder left xAI. I believe this makes it the 4th co-founder to leave. Also Greg Yang is sick. Still wish xAI can build top models.
  • @ricburton Richard Burton on x
    Private secondaries markets have totally changed the way talent moves in Silicon Valley Now if you pick the right company you can be set for life in 2-3 years Vesting agreements will have to change [image]
  • @scobleizer Robert Scoble on x
    When leadership goes it usually means the boss isn't happy with their progress. Not good though.
  • @thedaviddosu David Dosu on x
    This keeps being truer and truer. [image]
  • @trace_cohen Trace Cohen on x
    $100M seed round coming soon...
  • @factorydoge69 @factorydoge69 on x
    they banned him for speaking the truth @styngdn [image]
  • @daniel_mac8 Dan McAteer on x
    He really didn't like the idea of going to the Moon before Mars, did he?
  • @seconds_0 @seconds_0 on x
    This is now a full leadership turnover at xAI
  • @himanshustwts Himanshu on x
    this isn't looking good [image]
  • r/singularity r on reddit
    One of the cofounders of xAI leaves the company