xAI Plans Next-Gen Grok at Trillions of Parameters, IPO Filing Reveals

SAN FRANCISCO — The SpaceX IPO filing, submitted to the SEC on May 20, 2026, contains the first publicly audited financial data for xAI — and it reveals both the scale of Elon Musk's AI ambitions and the significant investment required to pursue them.

Grok's Next Leap

SpaceX's filing discloses plans to scale Grok to "multiple trillions of parameters," describing the upgrade as enabling a "step change in reasoning in depth and overall intelligence." Current frontier AI models from competing labs operate in the hundreds of billions of parameters, making a multi-trillion parameter Grok a substantial technical and infrastructure undertaking.

The compute demands of such a model are considerable. xAI already operates two large-scale AI data centers — Colossus and Colossus II — both built in under 122 days and 91 days respectively, collectively delivering roughly 1 gigawatt of compute power. Even so, scaling to multi-trillion parameter models will require significantly more infrastructure, and the filing's use-of-proceeds section explicitly lists AI compute expansion as a priority for IPO funds.

The Financial Picture

For the first time, investors can examine xAI's books. The company lost $6.4 billion from operations on $3.2 billion in revenue in 2025 — a widening gap from the $1.56 billion loss on $2.62 billion revenue recorded in 2024. AI segment capital expenditures reached $7.7 billion in the first quarter of 2026 alone, an annualized pace of roughly $30.8 billion.

Revenue sources include $365 million from X and Grok subscriptions, $88 million in data licensing, and $116 million in advertising. A notable new revenue stream: Anthropic is paying xAI $1.25 billion per month for compute capacity through May 2029, a deal that converts spare infrastructure into consistent cash flow while the Grok business scales.

Users and Market Position

As of March 2026, Grok had 117 million monthly active users — about one in five of the 550 million combined users across Grok and X. That penetration rate suggests significant room to grow within the existing platform before needing to acquire new users from scratch.

On the enterprise side, Morgan Stanley and Apollo Global Management have begun testing Grok internally, and xAI launched Grok Build — its first AI coding agent — to paying subscribers this month, placing it in direct competition with tools from Anthropic and others.

Orbital AI Compute

The filing sets a concrete 2028 target for deploying the first orbital AI compute satellites — data centers launched aboard Starship that would handle AI training and inference in space. The company claims orbital infrastructure could dramatically reduce costs compared with ground-based data centers, with the added advantage of Starship's reusability making satellite deployment economically viable at scale.

With the IPO roadshow approaching and a June listing targeted at up to $1.75 trillion in valuation, xAI's roadmap from today's 117 million Grok users to a multi-trillion parameter model running partly in orbit represents one of the most ambitious technology scaling plans ever submitted to the SEC.