US firms' AI adoption keeps climbing: 40.7% for large companies per Census data

emollick · x · 2026-11-03

Ethan Mollick highlights Simon Willison's updated chart of US company AI adoption from the long-running Census Bureau survey, noting adoption keeps growing despite last summer's narrative that it was dropping. Firms with 250+ employees now report 40.7% AI use in any business function, 100-249 employee firms 33.5%, and smaller firms cluster around 21-23%.

A key caveat: the survey question was broadened in November 2025 (from producing goods/services to any business function), breaking comparability; Willison handles this with separate six-survey trailing averages rather than bridging the gap.

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