ChatGPT-5 Earns a 'D' Grade for Scientific Accuracy

Washington State University researchers graded ChatGPT-5 a "D" for its scientific accuracy and consistency ^[1]. The study tested the AI against more than 700 scientific hypotheses to evaluate its performance ^[1]. The results revealed a significant gap between the model's linguistic fluency and its conceptual reasoning ^[1]. While the AI generates articulate text, it frequently fails to identify false statements correctly ^[1]. According to the study, these inconsistencies suggest that current AI models lack a deep understanding of scientific logic ^[1]. This research highlights the need for caution when using AI for verifying complex information ^[1].