Observed Signal · Mar 28, 2026 · Leadership Change / Departures · Source: techcrunch · Impact: 1/5 · Sentiment: Neutral
Last xAI Co‑Founders Leave the Company
Two remaining co‑founders of Elon Musk’s AI startup xAI — Manuel Kroiss and Ross Nordeen — have left the company, according to Business Insider and reporting cited by TechCrunch. Kroiss led xAI’s pretraining team; Nordeen was described as Musk’s "right‑hand operator" and reportedly joined xAI from Tesla. The departures follow Musk’s comment that xAI "was not built right the first time around" and is being rebuilt from the ground up. xAI was recently acquired by SpaceX, consolidating SpaceX, xAI and X (formerly Twitter) under a single corporate umbrella. Reports also indicate SpaceX is planning a public offering. TechCrunch reached out to xAI for comment.
Leadership departures at xAI are notable for the company's stability but have limited direct implications for the AdTech/MarTech industry; consolidation of xAI with SpaceX and X could have indirect platform implications.
Track Insider Signals & Market Shifts in Real-Time
Polaris7 autonomous intelligence agents track regulatory filings, primary sources, executive changes, and deal flow 24/7. Create your free Explorer workspace to monitor these entities.
Key Takeaways & Evidence Grounding
- Manuel Kroiss, a co‑founder of xAI who led the company's pretraining team, has left xAI (reported by Business Insider).
- Ross Nordeen, a co‑founder described as Elon Musk's "right‑hand operator," has also left xAI (reported by Business Insider).
- Both Kroiss and Nordeen reportedly reported directly to Elon Musk while at xAI.
- xAI was recently acquired by SpaceX, bringing SpaceX, xAI, and X (formerly Twitter) under one corporate umbrella.
- SpaceX is reportedly planning to go public.
Connected Companies & Entities
3 Entities mappedRelated Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
xAI Overhaul: Musk Rebuilds Amid Co-Founder Exodus
Elon Musk said xAI "was not built right first time around" and is being rebuilt from the foundations up, comments that follow a wave of departures by early xAI co‑founders. Several named founders and researchers — including Zihang Dai, Guodong Zhang, Jimmy Ba, Tony Wu and Toby Pohlen — have left recently. The report notes Musk merged SpaceX and xAI in a deal he valued at $1.25 trillion and that Tesla agreed to invest $2 billion tied to a previously announced $20 billion funding round for xAI. xAI’s chatbot and image tool Grok faces international government investigations over misuse (including non‑consensual image generation), even as xAI builds large data‑center and power infrastructure in the U.S. SpaceX is preparing for a potential IPO later this year while hiring engineers from startups such as Cursor.
Musk's xAI Reboots Amid Co‑Founder Exodus
xAI is undergoing a major personnel overhaul as it attempts to rebuild its deep‑learning lab to better compete with Anthropic and OpenAI. This week co‑founders Zihang Dai and Guodong Zhang left after Elon Musk criticized xAI’s coding tools for lagging behind rival assistants such as Claude Code and Codex. Only two of the original 11 co‑founders, Manuel Kroiss and Ross Nordeen, remain. Musk says xAI is being rebuilt “from the foundations up.” New hires include Andrew Milich and Jason Ginsberg from Cursor, while the Macrohard project — an xAI initiative Musk says is joint with Tesla to pair an LLM with Tesla’s humanoid agent — has been reported on pause. SpaceX and Tesla executives have reportedly been involved in evaluating xAI staff as the company pushes to show product and revenue progress.
xAI Co‑founders and Engineers Exit Amid Controversy
xAI is facing a wave of departures, safety concerns and regulatory scrutiny after SpaceX legally acquired the AI startup (which had earlier acquired the social platform X). At least 11 engineers and multiple co‑founders have left amid reorganization moves by Elon Musk, who has said the firm needs to improve speed. Former employees told outlets (via The Verge) that xAI’s safety organization is effectively defunct and that Musk is pushing to make the Grok chatbot "more unhinged." The departures follow reports that Grok-generated content was used to create more than one million sexualized images, including deepfakes of real women and minors, and come amid broader investigations and public criticism (previous reporting noted a French raid on X offices). Some departing engineers plan to start new ventures; reports also name co‑founders such as Yuhuai (Tony) Wu and Jimmy Ba among those exiting.
Track Real-Time Market Signals & Shifts
Set up custom watchlists to receive automated, evidence-grounded executive digests whenever material signals or shifts occur across your tracked landscape.