Person
Koray Kavukcuoglu
Koray Kavukcuoglu is a senior leader at Google DeepMind; in August 2026 he took over running the organisation after co-founder Demis Hassabis moved to a chair role, having previously served as its chief technology officer and, from 2025, as Google's first chief AI architect. Turkish-born and trained under Yann LeCun at NYU, he joined DeepMind as a researcher in 2012 and oversaw development of the Gemini model family.
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- Security & misuse 1
- Labs & people 1
Google releases Gemini 4 Argon to cyber defenders before a wider launch
The output limit rises from 64,000 to one million tokens and introductory pricing is $2/$10 per million; Artificial Analysis placed it level with GPT-6 Astra, behind Anthropic's newest models.
Models & capabilities · Security & misuse
Demis Hassabis steps down as Google DeepMind CEO in leadership reshuffle
Google's stock fell nearly 4% on the news, which coincided with Gemini's flagship model having slipped past its planned mid-2026 launch.
Labs & people