
Half-Life Crisis: Why AI Agents Fade with Time (and What It Means for Automation)
Half-Life Crisis: Why AI Agents Fade with Time (and What It Means for Automation) “The longer the task, the harder they fall.” In the world of automation, we often focus on how capable AI agents are — but rarely on how long they can sustain that capability. A new paper by Toby Ord, drawing from the empirical work of Kwa et al. (2025), introduces a profound insight: AI agents have a “half-life” — a predictable drop-off in success as task duration increases. Like radioactive decay, it follows an exponential curve. ...