xAI does not go by that name alone any more. Here is what SpaceXAI is, why xAI became SpaceXAI, who owns Grok now, and whether any of it changes how you use Grok day to day.
1. What is SpaceXAI?
SpaceXAI is the new name for the company that used to be called xAI, the maker of Grok. Elon Musk's SpaceX acquired xAI in an all stock deal that closed on 2 February 2026, and the combined business completed its public rebrand to SpaceXAI in July 2026, confirmed by xAI's own announcement and widely reported by outlets including CNBC and Engadget.
The new name covers the parent company, not the product you actually open each day. Grok, SuperGrok, Grok Build and Grok Bot all continue under their existing names, sitting inside SpaceXAI the way Starlink and Falcon 9 sit inside SpaceX.
2. Why did xAI become SpaceXAI?
The rebrand formalised a merger that had already happened on paper months earlier. Musk said in May 2026 that xAI would stop existing as a standalone company, describing the result as SpaceXAI, the AI products from SpaceX, and the public name change followed with a new logo on 6 July 2026.
Musk's stated reasoning is about power and compute. Putting a rocket and satellite company and an AI lab under one roof supports his longer term idea of running AI computing in orbit, where solar power is continuous and cooling works differently to a data centre on the ground. That is Musk's own rationale rather than an independently tested plan, so treat it as a stated goal, not a result.
The rebrand changed the name above the door. It did not change the Grok product behind it.
3. Who owns Grok now?
Grok is owned by SpaceXAI, Elon Musk's combined rocket, satellite and AI business. xAI, the company Musk founded in March 2023, was acquired by SpaceX in a deal that closed on 2 February 2026, valuing xAI at 250 billion US dollars and the combined company at about 1.25 trillion US dollars, according to reporting from CNBC and CNN.
X, the social network, was already part of the xAI group before the SpaceX deal, having been folded into xAI in an earlier 2025 transaction. So Grok, X and SpaceX's rockets and Starlink satellites now sit under the single SpaceXAI parent.
4. Did Grok's name change too?
No. Coverage of the rebrand is consistent that only the corporate name and ownership changed, not the product names. You still open Grok at grok.com, in the iOS and Android apps, or inside X, and the SuperGrok subscription tiers keep their existing names and prices.
What did change is more visible behind the scenes than in the product itself. The company's X account moved to the SpaceXAI handle, and xAI's developer documentation at docs.x.ai now carries SpaceXAI branding. None of that changes how you sign in, pay or prompt Grok.
5. What is SpaceXAI's valuation?
The February 2026 merger valued the combined SpaceX and xAI business at about 1.25 trillion US dollars, built from a reported 250 billion dollar figure for xAI and roughly 1 trillion dollars for SpaceX at the time, as reported by CNBC and Bloomberg.
That figure moved again a few months later. SpaceX priced its initial public offering at around 135 US dollars per share in June 2026, raising roughly 75 billion dollars in what NPR and other outlets described as one of the largest stock market debuts on record. Treat any specific trading price you see quoted after that as a snapshot of the share price on a given day, not a fixed company value.
6. What does the rebrand mean for Grok users?
Practically, very little changes about how you use Grok today. The same sign in, the same SuperGrok plans, and the same API model names and pricing apply. The main thing worth knowing is the name behind the logo, so official pages, support channels and app store listings that mention SpaceXAI are the same company Grok has always come from, not a clone or a scam.
The bigger picture is about direction rather than day to day use. Grok's product roadmap now sits inside SpaceX's part of Musk's businesses rather than an independent AI startup's. Whether that changes investment or priorities is something to watch, and it is worth revisiting as SpaceXAI says more about how it plans to combine AI and space infrastructure.