Elon Musk’s xAI lands $6B in new cash to fuel AI ambitions


Updated December 25, 12:21 p.m. Pacific: Added details of xAI’s valuation and Kingdom Holdings’ contribution.

xAI, Elon Musk’s AI company, has raised $6 billion in a Series C financing round.

The company announced this week that Andreessen Horowitz , Blackrock, Fidelity, Lightspeed, MGX, Morgan Stanley, OIA, QIA, Sequoia Capital, Valor Equity Partners, Vy Capital, Nvidia, AMD, and others participated.

Kingdom Holdings, the Saudi conglomerate holding company, invested roughly $400 million in the round, according to a public filing. The filing also revealed that xAI is now valued at $45 billion, close to double its previous valuation.

The new cash brings xAI’s total raised to $12 billion, adding to the $6 billion tranche xAI raised in May.

According to the Financial Times, only investors who’d backed xAI in its previous fundraising round were permitted to participate in this one. Reportedly, investors who helped finance Musk’s Twitter acquisition were given access to up to 25% of xAI’s shares.

“xAI’s most powerful model yet … is currently training and we are now focused on launching innovative new consumer and enterprise products,” xAI said in a statement. “The funds from this financing round will be used to further accelerate our advanced infrastructure, ship groundbreaking products … and accelerate … research and development.”

Ramping up AI

Musk formed xAI last year. Soon after, the company released Grok, a flagship generative AI model that now powers a number of features on X, including a chatbot accessible to X Premium subscribers and free users in some regions.

Grok has what Musk has described as “a rebellious streak” — a willingness to answer “spicy questions that are rejected by most other AI systems.” Told to be vulgar, for example, Grok will happily oblige, spewing profanities and colorful language you won’t hear from ChatGPT.

Musk has derided ChatGPT and other AI systems for being too “woke” and “politically correct,” despite Grok’s own unwillingness to cross certain boundaries and hedge on political subjects. He’s also referred to Grok as “maximally truth-seeking” and less biased than competing models, although there’s evidence to suggest that Grok leans to the left.

Over the past year, Grok has become increasingly ingrained in X, the social network formerly known as Twitter. At launch, Grok was only available to X users — and developers skilled enough to get the “open source” edition up and running.

Thanks to an integration with xAI’s in-house image generation model, Aurora, Grok can generate images on X (without guardrails, controversially). The model can analyze images as well, and summarize news and trending events — imperfectly, mind.

Reports indicate that Grok may handle even more X functions in the future, from enhancing X’s search capabilities and account bios to helping with post analytics and reply settings. X recently got a “Grok button” designed to help users discover “relevant context” and dive deeper into trending discussions and real-time events.

xAI is sprinting to catch up to formidable competitors like OpenAI and Anthropic in the generative AI race. The company launched an API in October, allowing customers to build Grok into third-party apps, platforms, and services. And it just rolled out a standalone Grok iOS app to a test audience.

Musk asserts that it hasn’t been a fair fight.

In a lawsuit filed against OpenAI and Microsoft, OpenAI’s close collaborator, attorneys for Musk accuse OpenAI of “actively trying to eliminate competitors” like xAI by “extracting promises from investors not to fund them.” OpenAI, Musk’s counsel says, also unfairly benefits from Microsoft’s infrastructure and expertise in what the attorneys describe as a “de facto merger.”

Yet Musk often says that X’s data gives xAI a leg up compared to rivals. Last month, X changed its privacy policy to allow third parties, including xAI, to train models on X posts.

Musk, it’s worth noting, was one of the original founders of OpenAI, and left the company in 2018 after disagreements over its direction. He’s argued in previous suits that OpenAI profited from his early involvement yet reneged on its nonprofit pledge to make the fruits of its AI research available to all.

OpenAI, unsurprisingly, disagrees with Musk’s interpretation of events. In a mid-December press release, the company characterized Musk’s lawsuit as misleading, baseless, and a case of sour grapes.

An xAI ecosystem

xAI has outlined a vision according to which its models would be trained on data from Musk’s various companies, including Tesla and SpaceX, and the models could then improve technology across those companies. xAI is already powering customer support for SpaceX’s Starlink internet service, according to The Wall Street Journal, and the startup is said to be in talks with Tesla to provide R&D in exchange for some of the carmaker’s revenue.

Tesla shareholders, for one, object to these plans. Several have sued Musk over his decision to start xAI, arguing that Musk has diverted both talent and resources from Tesla to what’s essentially a competing venture.

Nevertheless, the deals — and xAI’s developer and consumer-facing products — have driven xAI’s revenue to around $100 million a year. For comparison, Anthropic is reportedly on pace to generate $1 billion in revenue this year, and OpenAI is targeting $4 billion by the end of 2024.

Musk said this summer that xAI is training the next generation of Grok models at its Memphis data center, which was apparently built in just 122 days and is currently powered partly by portable diesel generators. The company hopes to upgrade the server farm, which contains 100,000 Nvidia GPUs, next year; in a press release, xAI said it plans to fully double that number. (Because of their ability to perform many calculations in parallel, GPUs are the favored chips for training and running models.)

In November, xAI won approval from the regional power authority in Memphis for 150MW of additional power — enough to power roughly 100,000 homes. To win the agency over, xAI pledged to improve the quality of the city’s drinking water and provide the Memphis grid with discounted Tesla-manufactured batteries. But some residents criticized the move, arguing it would strain the grid and worsen the area’s air quality.

Tesla is also expected to use the upgraded data center to improve its autonomous driving technologies.

xAI has expanded quite rapidly from an operations standpoint in the year since its founding, growing from just a dozen employees in March 2023 to over 100 today. In October, the startup moved into OpenAI’s old corporate offices in San Francisco’s Mission neighborhood.

xAI has reportedly told investors it plans to raise more money next year.

It won’t be the only AI lab raising immense cash. Anthropic recently secured $4 billion from Amazon, bringing its total raised to $13.7 billion, while OpenAI raised $6.6 billion in October to grow its war chest to $17.9 billion.

Megadeals like OpenAI’s and Anthropic’s drove AI venture capital activity to $31.1 billion across over 2,000 deals in Q3 2024, per PitchBook data.

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X gains a faster Grok model and a new ‘Grok button’


XAI, Elon Musk’s AI company, may be embroiled in an escalating lawsuit with OpenAI. But that’s not stopping it from shipping new products — on a Friday night, no less.

This evening, xAI revealed that it has begun to roll out an upgraded version of its flagship Grok 2 chatbot model to all users on X, the social network formerly known as Twitter. (X, which Musk also owns, often serves as a testing ground of sorts for Grok.) The enhanced Grok is “three times faster,” xAI claims in a blog post, and offers “improved accuracy, instruction-following, and multi-lingual capabilities.”

Free users can only ask Grok ten questions every two hours. Subscribers to X’s Premium and Premium+ plans get higher usage limits.

XAI also announced tonight the addition of a “Grok button” to X, which the company says is designed to help users discover “relevant context, understand real-time events, and dive deeper into trending discussions.”

xAI Grok
The new Grok button. Image Credits:xAI

And the startup said it’s making several changes to its enterprise API.

XAI’s API has a pair of new Grok models with better efficiency and multilingual performance, xAI says. As a result of the efficiency gains, pricing has been reduced from $5 per million input tokens (~750,000 words) or $15 per million output tokens to $2 per million input tokens and $10 per million output tokens.

In the coming weeks, xAI’s image generation model, Aurora, will come to the API as well, xAI says. Aurora, a largely unfiltered image AI, was released on X this month in the Grok chatbot experience.

Musk’s amended lawsuit against OpenAI names Microsoft as defendant


Elon Musk’s lawsuit against OpenAI accusing the company of abandoning its non-profit mission was withdrawn in July, only to be revived in August. Now, in an amended complaint, the suit names new defendants including Microsoft, LinkedIn co-founder Reid Hoffman, and former OpenAI board member and Microsoft VP Dee Templeton.

The amended filing also adds new plaintiffs: Neuralink exec and ex-OpenAI board member Shivon Zilis and Musk’s AI company, xAI.

Musk was one of the original founders of OpenAI, which was meant to research and develop AI for the benefit of humanity, and was established as a non-profit originally. He left the company in 2018 after disagreements about its direction.

In the complaint, lawyers for Musk argue that OpenAI is now “actively trying to eliminate competitors” such as xAI by “extracting promises from investors not to fund them.” It’s also allegedly unfairly benefitting from Microsoft’s infrastructure and expertise in what Musk’s counsel describes in the filing as a “de facto merger.”

“xAI has been harmed by, without limitation … an inability to obtain compute from Microsoft on terms anywhere near as favorable as OpenAI receives … and the exclusive exchange between OpenAI and Microsoft of competitively sensitive information,” reads the complaint, filed late Thursday in federal court in Oakland, California.

Hoffman’s position on the boards of both Microsoft and OpenAI while also a partner at Greylock, the investment firm, gave Hoffman a privileged — and illicit — view into the companies’ dealings, the complaint alleges. (Hoffman stepped down from OpenAI’s board in 2023.) Greylock invested in Inflection, Musk’s counsel notes, the AI startup that Microsoft acqui-hired earlier this year — and which could reasonably be considered an OpenAI competitor, according to the complaint.

As for Templeton, whom Microsoft briefly appointed as a non-voting board observer at OpenAI, the amended filing alleges that she was in a position to facilitate agreements between Microsoft and OpenAI that would violate antitrust rules.

“The purpose of the prohibition on interlocking directorates is to prevent sharing of competitively sensitive information in violation of antitrust laws and/or providing a forum for the coordination of other anticompetitive activity,” the complaint reads. “Allowing Templeton and Hoffman to serve as members of OpenAI’s …. board undermined this purpose. “

Alongside Microsoft, Hoffman, and Templeton, California attorney general Rob Bonta is named as a defendant in Musk’s complaint. Bloomberg reported this month that OpenAI is in talks with Bonta’s office over the process to change its corporate structure.

Per the amended complaint, Zilis, who stepped down from OpenAI’s board in 2023 after serving as a member for roughly four years, has standing as an “injured employee” under California Corporations Code. Zilis repeatedly raised concerns over OpenAI’s dealmaking internally that fell on deaf ears — concerns substantially similar to Musk’s, according to the complaint.

Zilis has close ties to Musk, having worked as a project director at Tesla from 2017 to 2019 in addition to directing Neuralink research. (Neuralink is Musk’s brain-computer interface venture.) She’s also the mother of three of Musk’s children, Techno Mechanicus and twins Strider and Azure.

The 107-page amended complaint includes the unusual detail that OpenAI CEO Sam Altman proposed that OpenAI sell its own cryptocurrency in January 2018, before it ultimately decided to transition to a capped-profit structure.

“Heads up, spoke to some of the safety team and there were a lot of concerns about the ICO and possible unintended effects in the future,” Altman wrote in an email to Musk dated January 21, 2018, an exhibit filed with the amended complaint shows. An ICO, or initial coin offering, is an unregulated means by which funds are raised for cryptocurrency businesses. “Going to emphasize the need to keep this confidential, but I think it’s really important we get buy-in and give people the chance to weigh in early.”

Musk v OpenAI crypto ICO Altman email
Image Credits:Toberoff & Associates

Musk supposedly shot down the crypto sale idea. “I have considered the ICO approach and will not support it,” he wrote in an email reply to Altman and OpenAI co-founders Greg Brockman (now OpenAI’s president) and Ilya Sutskever (OpenAI’s ex-chief scientist), shows an exhibit. “In my opinion, that would simply result in a massive loss of credibility for OpenAI and everyone associated with the ICO.”

The thrust of the lawsuit remains the same on the plaintiffs’ side: that OpenAI profited from Musk’s early involvement in the company yet reneged on its nonprofit pledge to make the fruits of its AI research available to all. “No amount of clever drafting nor surfeit of creative dealmaking can obscure what is happening here,” reads the complaint. “OpenAI, Inc., co-founded by Musk as an independent charity committed to safety and transparency … [is] fast becoming a full for-profit subsidiary of Microsoft.”

OpenAI has sought to dismiss Musk’s lawsuit, calling it “blusterous” and baseless.

Musk’s amended lawsuit against OpenAI names Microsoft as defendent


Elon Musk’s lawsuit against OpenAI accusing the company of abandoning its nonprofit mission was withdrawn in July, only to be revived in August. Now, in an amended complaint, the suit names new defendants including Microsoft, LinkedIn co-founder Reid Hoffman, and former OpenAI board member and Microsoft VP Dee Templeton.

The amended filing also adds new plaintiffs: Neuralink exec and ex-OpenAI board member Shivon Zilis and Musk’s AI company, xAI.

Musk was one of the original founders of OpenAI, which was meant to research and develop AI for the benefit of humanity, and was established as a non-profit originally. He left the company in 2018 after disagreements about its direction.

In the complaint, lawyers for Musk argue that OpenAI is now “actively trying to eliminate competitors” such as xAI by “extracting promises from investors not to fund them.” It’s also allegedly unfairly benefitting from Microsoft’s infrastructure and expertise in what Musk’s counsel describes in the filing as a “de facto” merger.

“xAI has been harmed by, without limitation … an inability to license OpenAI technology given Microsoft’s exclusive license … an inability to obtain compute from Microsoft on terms anywhere near as favorable as OpenAI receives … and the exclusive exchange between OpenAI and Microsoft of competitively sensitive information.”

Hoffman’s position on the boards of both Microsoft and OpenAI while also a partner at Greylock, the investment firm, gave Hoffman a privileged — and illicit — view into the companies’ dealings, the complaint alleges. (Hoffman stepped down from OpenAI’s board in 2023.) Greylock invested in Inflection, Musk’s counsel notes, the AI startup that Microsoft acqui-hired earlier this year — and which could reasonably be considered an OpenAI competitor, according to the complaint.

As for Templeton, whom Microsoft briefly appointed as a non-voting board observer at OpenAI, the amended filing alleges that she was in a position to facilitate agreements between Microsoft and OpenAI that would violate antitrust rules.

“The purpose of the prohibition on interlocking directorates is to prevent sharing of competitively sensitive information in violation of antitrust laws and/or providing a forum for the coordination of other anticompetitive activity,” the complaint reads. “Allowing Templeton and Hoffman to serve as members of OpenAI’s …. board undermined this purpose. “

Per the amended complaint, Zilis, who stepped down from OpenAI’s board in 2023 after serving as a member for roughly four years, has standing as an “injured employee” under California Corporations Code. Zilis repeatedly raised concerns over OpenAI’s dealmaking internally that fell on deaf ears — concerns substantially similar to Musk’s, according to the complaint.

Zilis has close ties to Musk, having worked as a project director at Tesla from 2017 to 2019 in addition to directing Neuralink research. (Neuralink is Musk’s brain-computer interface venture.) She’s also the mother of three of Musk’s children, Techno Mechanicus and twins Strider and Azure.

The 107-page amended complaint includes the unusual detail that OpenAI CEO Sam Altman proposed that OpenAI sell its own cryptocurrency in September 2017, before it ultimately decided to transition to a capped-profit structure. Musk supposedly shot down the crypto sale idea.

The thrust of the lawsuit remains the same on the plaintiffs’ side: that OpenAI profited from Musk’s early involvement in the company yet reneged on its nonprofit pledge to make the fruits of its AI research available to all. “No amount of clever drafting nor surfeit of creative dealmaking can obscure what is happening here,” reads the complaint. “OpenAI, Inc., co-founded by Musk as an independent charity committed to safety and transparency … [is] fast becoming a full for-profit subsidiary of Microsoft.”

Elon Musk is reportedly planning an xAI supercomputer to power a better version of Grok


Elon Musk told investors this month that his startup xAI is planning to build a supercomputer by the fall of 2025 that would power a future, smarter iteration of its Grok chatbot, The Information reports. This supercomputer, which Musk reportedly referred to as a “gigafactory of compute,” would rely on tens of thousands of NVIDIA H100 GPUs and cost billions of dollars to build. Musk has previously said the third version of Grok will require at least 100,000 of the chips — a fivefold increase over the 20,000 GPUs said to be in use for training Grok 2.0.

According to The Information, Musk also told investors in the presentation that the planned GPU cluster would be at least four times the size of anything used today by xAI competitors. Grok is currently in version 1.5, which was released in April, and is now touted to process visual information like photographs and diagrams as well as text. X earlier this month started rolling out AI-generated news summaries powered by Grok for premium users.