Mistral's AI Summit at Paris's Le Carrousel du Louvre. STEPHANE DE SAKUTIN / AFP via Getty Images Silicon Valley has started reassessing whether higher token use actually boosts productivity. Business Insider asked four executives how they measure AI ROI at Mistral AI's summit in Paris. They said they focus on business outcomes, not how many tokens employees consumed. Silicon Valley has spent the past year turning AI usage into a scoreboard. But after asking four executives about how they meas