102
▲ 20× since 2017
witnesses at US congressional AI-related hearings in 2025
20172025
What the chart shows
102 witnesses appeared at US congressional hearings focused on AI in 2025, 20 times the 5 of 2017. The highest year was 2023, with 131.
From 2018 to 2022 the count stayed between 17 and 37 a year, then rose more than sevenfold in 2023, from 18 to 131. The AI Index notes this followed the arrival of mainstream generative AI tools in late 2022. In 2024 there were 81.
Key numbers
| Measure | Value |
|---|---|
| 2025 | 102 |
| 2024 | 81 |
| 2023 (high) | 131 |
| 2022 | 18 |
| 2017 | 5 |
How to read it
- Counts witness appearances at House and Senate hearings where AI was the central focus, found by keyword search of hearing titles and descriptions on Congress.gov and checked by hand. A person who testifies twice counts twice.
- Calendar-year counts across both chambers. See the related charts for witnesses by sector and by subject.
Source: AI Index, 2026, via the AI Index Report 2026 (Stanford HAI), figure 8.4.7: Number of witnesses in US congressional AI-related hearings, 2017–25. Chart and text by AI Adoption.
Numbers checked against the published data on 20 October 2026.
Download the data (CSV) · Cite this chart
Numbers checked against the published data on 20 October 2026.
Download the data (CSV) · Cite this chart
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