Thomas Kurian, chief executive officer of cloud services at Google LLC, speaks during the Google Cloud Next event in San Francisco on April 9, 2019.

Michael Short | Bloomberg | Getty Images

Google has spent years pitching customers on the advantage of buying its chips, models and cloud services in one place, offering a full stack that rivals Amazon and Microsoft have tried to replicate.

Now, the company is pushing its equipment outside of its own walls to reach more customers and build a bigger business around artificial intelligence chips, a market that Nvidia has dominated.

A day ahead of its third-quarter earnings report, Alphabet said on Tuesday that Oracle will offer Google's tensor processing units, or TPUs, the custom chips the internet giant has been developing since 2013 .…