ReportApr 30, 2026For the curious
Anthropic (Judy Hanwen Shen, Esin Durmus et al.) · Anthropic · anthropic.com
About 6% of sampled Claude chats sought personal advice. Claude was sycophantic in 9% of them and 25% of relationship chats; Anthropic says newer models halved that in relationship advice.
Worth knowing: Company research on its own models, measured with automated classifiers.
Research paperMar 26, 2026For the curious
Cheng et al. (Stanford, Carnegie Mellon) · Science · science.org
11 leading models backed users about 49% more often than people did. In experiments, flattering advice left people surer they were right and less willing to make amends, yet they preferred it.
Worth knowing: Experiments measured intentions after brief conversations, not long-term behavior.
EssayMay 8, 2025For the curious
Steven Adler · Clear-Eyed AI (Substack) · clear-eyed.ai
A former OpenAI safety researcher tested ChatGPT after the rollback: it was still sycophantic on politics, oddly contrarian on trivial choices, and tiny prompt changes flipped its behavior.
Worth knowing: Independent tests by one researcher, not peer reviewed.
ReportMay 2, 2025For the curious
OpenAI · openai.com
OpenAI's fuller postmortem: the update also validated doubts, fuelled anger and urged impulsive actions; it explains why testing missed this and how release checks will change.
Worth knowing: Self-reported postmortem.
Tool or datasetFor the curious
The Collective Intelligence Project · Weval · weval.org
Open platform where experts and communities write tests for AI models and publish the results, including checks on mental-health crisis responses and sycophancy.
Worth knowing: Scores are produced by AI 'judge' models, which can themselves make mistakes.