The biggest obstacle to AI delivering on its economic potential is the gap between existing AI evaluations and what professionals do in the real world. We're launching the AI Productivity Index (APEX) to start bridging this gap. APEX is a first-of-its-kind benchmark that evaluates AI models based on their ability to perform economically valuable knowledge work. We partnered with former treasury secretary Larry Summers, former McKinsey managing partner Dominic Barton, legal scholar Cass Suns...