India, Oct. 23 -- Enterprises have invested heavily in artificial intelligence, but proving what that spending delivers remains a challenge. Cognizant's research found that two-thirds of Global 2000 leaders had yet to show measurable productivity gains from AI. One in four had paused or abandoned deployments.

Now, Cognizant is introducing Cognizant AI Nexus, a modular operating layer designed to help businesses track AI spending, govern quality and measure results across teams.

The launch points to a growing enterprise concern: choosing a powerful AI model is only part of the job. Businesses also need to know what it costs, how well it performs and whether it delivers measurable value.

The financial pressure is already visible. A Cogni...