New LLMs Flip Hiring Bias, Favoring Black Candidates Over White
Auditing fourteen mainstream LLMs with paired résumés, researchers find a 2023‑vintage model reproduces a pro‑White callback gap (+2.12 pp), while every model released in 2024 or later shows either no gap or a significant pro‑Black reversal (up to –3.01 pp). The shift proves AI hiring tools can develop novel, opposite‑direction biases, debunking the notion they’re inherently fairer than humans.