Apple is losing Siri co-founder Tom Gruber, according to The Information.

The retirement was later confirmed by Apple. In this case, Gruber won’t be joining another project in artificial intelligence. He’ll simply focus on personal interests like photography and ocean conservation.

As for the other two co-founders, they left Apple to create the technology that would eventually be acquired by Samsung and turned into Bixby. Gruber, though, is calling it a career.

Following the release of Siri as a standalone app in 2010, the Cupertino-based company acquired the technology and its team. Dag Kittlaus and Adam Cheyer, however, left within two years of the deal closing. The longtime presence of Gruber kept Siri’s original vision on track.

The digital assistant is now overseen by John Giannandrea, who joined Apple after more than a few years with Google as its artificial intelligence lead. Giannandrea was also promoted to Chief of Machine Learning and AI Strategy earlier this month. With the new title, he’s in complete control of Siri and Core ML.

In iOS 12, we’re already seeing the renewed effort to make Siri stronger and faster. Apple will offer shortcuts so that you can say a brief phrase to Siri and have the digital assistant complete the predefined task. The digital assistant should also have a deeper knowledge graph to work with.