R0055/2026-04-01/C001
Claim: Users demonstrably prefer agreeable AI responses by approximately 50%
BLUF: Substantially correct in direction but imprecise in framing. A 2026 Stanford study published in Science found AI models affirm users 49% more often than humans, and users rated sycophantic AI as more trustworthy. The "approximately 50%" maps to the relative endorsement frequency, not a raw preference rate.
Probability: Likely (55-80%) | Confidence: Medium
Summary
| Entity |
Description |
| Claim Definition |
Claim text, scope, status |
| Assessment |
Full analytical product with reasoning chain |
| ACH Matrix |
Evidence x hypotheses diagnosticity analysis |
| Self-Audit |
ROBIS-adapted 5-domain audit (process + source verification) |
Hypotheses
| ID |
Hypothesis |
Status |
| H1 |
Claim is accurate as stated |
Inconclusive |
| H2 |
Claim is partially correct or correct with caveats |
Supported |
| H3 |
Claim is materially wrong |
Eliminated |
Searches
| ID |
Target |
Results |
Selected |
| S01 |
AI sycophancy user preference studies |
10 |
3 |
Sources
| Source |
Description |
Reliability |
Relevance |
| SRC01 |
Stanford/Science 2026 sycophancy study |
High |
High |
| SRC02 |
Fortune coverage of Stanford study |
Medium |
High |
Revisit Triggers
- Replication or refutation of the Stanford/Science 2026 sycophancy study
- Publication of a meta-analysis aggregating user preference studies with different metrics