Researchers from the University of Zurich, University of Amsterdam, Duke University and NYU released a study revealing that AI‑generated social‑media replies are often marked by an overly friendly emotional tone. Testing nine open‑weight large language models across platforms such as Twitter/X, Bluesky and Reddit, the team found their classifiers could detect AI‑generated content with 70 to 80 percent accuracy. The models also displayed consistently lower toxicity scores than human users, and attempts to fine‑tune or prompt them did not eliminate the emotional‑tone giveaway. Leer más →