A new study reveals that AI tools marketed to spot misinformation often fail to truly verify facts. Researchers found that many systems merely calculate probabilities based on training data, reproducing biases and missing real‑world nuances. The analysis also highlights gender and regional bias, reliance on opaque fact‑checking labels, and rapid obsolescence as models age. As a response, the study proposes a browser extension called Aletheia, which explains why content may be suspect rather than issuing a simple true/false verdict, aiming to help users make informed judgments. Read more →