Springer Nature retracted a widely-cited 2025 study claiming ChatGPT improves student learning, citing discrepancies in the meta-analysis and methodological concerns. The paper had already accumulated hundreds of citations and spread across social media before the retraction in April 2026, meaning flawed claims influenced education policy discussions while the underlying research was compromised. This illustrates the lag time between publication and discovery of research flaws in high-profile studies — by retraction, the false findings had already shaped the public conversation around AI in classrooms.