Anthropic filing puts potential SpaceX compute spending at $120.5 billion

Anthropic filed an S-1 registration statement with the SEC for a proposed initial public offering.[1] The filing says Anthropic entered into and amended several agreements with SpaceX.AI LLC between May and October 2026.[2] Those agreements provide access to compute powered by NVIDIA GPUs, and Anthropic puts its aggregate potential spending under them at up to $120.5 billion.[2] The terms extend into 2029.[2] The filing also lists Microsoft, Nscale and Lambda among cloud providers giving Anthropic access to Nvidia GPUs.[2]

The reported payment pace is roughly $3.1 billion a month, or about $37 billion a year, but the filing’s stated total is potential spending of up to $120.5 billion.[2] Fees differ while contracted capacity is ramping up, so the monthly figure should not be read as a fixed payment throughout the agreements.[2] The initial non-cancelable periods end in January 2027 and March 2027; after those periods, either Anthropic or SpaceX can cancel with 90 days’ written notice.[2] These terms make both the scale of the commitment and its cancellation conditions relevant to planning.

Anthropic says its May 2026 agreement gives it all the compute capacity at SpaceX’s Colossus 1 data center.[3] The company said the arrangement would provide more than 300 megawatts of new capacity, or over 220,000 NVIDIA GPUs, within the month.[3] Anthropic says the added Colossus 1 capacity will directly improve capacity for Claude Pro and Claude Max subscribers.[3] It also said recent compute deals enabled it to increase usage limits for Claude Code and the Claude API.[3] Anthropic doubled Claude Code’s five-hour rate limits for several paid plans, removed peak-hours reductions for Pro and Max, and raised API rate limits considerably for Claude Opus models.[3]

Anthropic intends to list its Class A common stock on Nasdaq under the symbol ANT, but the number of shares and price range for the proposed offering had not yet been determined.[1] The company also said it had expressed interest in partnering with SpaceX to develop multiple gigawatts of orbital AI compute capacity.[3] That interest is distinct from the agreements described in the filing: the evidence does not say that orbital capacity has been contracted or built. Anthropic’s Claude models compete with Grok models, and SpaceX had not commented on the S-1 filing, according to the report.[2]