The AI race between the world's most powerful tech companies is heating up [This week in AI]

At this year's Google I/O developer conference keynote, AI took center stage. The company announced a new Google.ai Part of Google's push for AI also included announcing that Tensor Processing Units (TPUs) are now available for any developer to use via the Google Compute Engine. TPUs are used by the company to train machine learning models, which give the ability to learn without being explicitly programmed. "We want it to be possible for hundreds of thousands of developers to use machine learning," said Pichai.