Disclosed, and not quietly. Meta's fiscal 2024 annual report (filed January 30, 2025) states that "across our work, we are innovating in artificial intelligence (AI) technologies to build new" experiences meant to make its platform "more social, useful, and immersive." SEC filings surfaced the language.

The phrase that earns the read is "across our work." Earlier Meta filings discussed AI within specific contexts — ad delivery, responsible-AI governance, generative-AI risk. Here AI is described as cutting across the whole company. When a 10-K moves a technology from a section to a through-line, that is a deliberate signal about strategic weight.

“Across our work, we are innovating in artificial intelligence (AI) technologies to build new experiences that help make our platform more social, useful, and immersive.”— SEC filing (10-K) source

The disclosure is a strategic statement, not a quantified one in this passage, and I'll treat it that way. It tells you where Meta is pointing; it does not hand you a return figure, and I won't invent one from a framing sentence.

For investors, the comparison to make is against prior years and against peers' filings the same season: nearly every Big Tech 10-K now puts AI at the center of its self-description. Meta's FY2024 language is part of that pattern, and the test ahead is whether disclosed economics follow the framing. The 10-K on sec.gov is primary; SEC filings is the evidence index.