Google was the first cloud provider to make its own custom AI chips, called TPUs, when they first came out in 2015 – a trend both Amazon and Microsoft followed years later. Now, Apple has revealed it uses TPUs to train its AI models, positioning Google chips as an alternative to Nvidia’s market-leading GPUs. CNBC got an exclusive look inside the lab where Google makes its chips, and its top executive showcased TPU Version 6, Trillium, and its new Arm-based CPU, Axion, both coming out later in 2024.