In a post on social media,, external Musk said: "Next year, I will give one of my SpaceX shares to every kid in America.
Last week, Anthropic told prospective investors that its revenue surged by 45% to $16.8bn (£12.6bn) in the three months to the end of September.
The Claude developer said on Sunday that the fund could also receive another 2% of the firm's shares at its board's discretion.
Companies around the world, primarily technology firms, have cut thousands of jobs after investing in AI, with many pointing to higher efficiencies from its adoption.