Surprisingly difficult to find a source on this that isn't a Twitter Screenshot of some right-wing grifter's account.
This seems to be it, but I don't think there's currently a working paywall bypass for the information (solid site, though).
https://mlq.ai/news/meta-caps-internal-ai-token-spending-after-costs-approach-billions-in-2026/
This might be that article, but not entirely sure. Ironically, that site seems to be another questionable AI project.