How Google makes custom chips used to train Apple AI models and its own chatbot, Gemini

Inside a sprawling lab at Google headquarters in Mountain View, California, hundreds of server racks hum across several aisles, performing tasks far less ubiquitous than running the world’s dominant search engine or executing workloads for Google Cloud’s millions of customers.

Instead, they’re running tests on Google’s own microchips, called Tensor Processing Units, or TPUs.

Originally trained for internal workloads, Google’s TPUs have been