The Ontario Securities Commission (OSC) published staff research examining how frequently Canadian listed issuers refer to artificial intelligence (AI) in financial disclosures and the sentiment used when doing so. The exploratory study reviewed Management Discussion and Analysis (MD&A) filings from S&P/TSX Composite Index issuers over a 10-year period and also tested large language models for sentiment analysis. OSC staff found a substantial increase in the number of issuers mentioning AI in MD&As, alongside a notable shift in tone in the 2024 filing year, when negative sentiment increased materially after earlier AI discussions were predominantly positive. Sentiment also varied by sector, with Finance and Information issuers remaining more positive on AI than issuers in other industries, which have become increasingly cautious.