US Census Bureau survey shows AI adoption reaching 40% at large firms
The jump in the headline number is mostly a measurement change, not a twelve-fold surge in usage, so anyone citing adoption statistics needs to check which question wording produced them. The data itself is free and downloadable as XLSX from the Census Bureau, making it a practical dataset for testing LLM analysis tools, as the author did with GPT-5 and Claude's Code Interpreter. Analysts comparing US corporate AI uptake should split series at the November 2025 wording change.