Personnel: Koray Kavukcuoglu at Google DeepMind (CTO)

NoteThe source text is a Wikipedia article about Google DeepMind that provides extensive detail about the organization's history, products, and leadership. The 'Key people' section explicitly lists only Demis Hassabis as CEO and Lila Ibrahim as COO. Koray Kavukcuoglu is not mentioned anywhere in the provided source text, and there is no reference to a CTO position at Google DeepMind. The claim cannot be verified or contradicted based on this source—it simply does not address whether Koray Kavukcuoglu holds or held a CTO role at Google DeepMind, or when such a role might have started (the claimed startDate of 2012 predates Google's acquisition of DeepMind in 2014, which adds further complexity). Without explicit confirmation or denial in the source, this is unverifiable.