Personnel: Koray Kavukcuoglu at Google DeepMind (CTO)

NoteThe source text is a Wikipedia article about Google DeepMind that includes a 'Key people' section listing the CEO and COO, but does not mention Koray Kavukcuoglu or identify anyone as CTO. The article covers the organization's history from 2010 onwards and discusses many personnel changes and roles, but Koray Kavukcuoglu is not mentioned anywhere in the provided text. The claim cannot be verified or contradicted based on the source provided—the source simply does not address whether Koray Kavukcuoglu holds or held a CTO position at Google DeepMind, nor does it provide information about who the CTO is/was or when that role was established.