Jeff Dean (@JeffDean) — Twitter Score 254 out of 1000

Jeff Dean is a computer scientist and AI researcher who serves as Chief Scientist at Google Google DeepMind and Google Research, leading work on large-scale machine learning systems. Jeff Dean's Twitter Score is 254 out of 1000 (an Excellent rating) as of July 2026, ranking #1,652 (top 0.5%) among 389,587 tracked accounts.

Jeff Dean co-founded Google Brain, the influential AI research team, and has been a primary architect of foundational infrastructure across Google's technical stack. His systems work spans MapReduce, Bigtable, Spanner, Protocol Buffers, and LevelDB, the last of which he co-authored with Sanjay Ghemawat. LevelDB is notably used by Bitcoin Core and go-ethereum to store blockchain metadata, giving his work a direct connection to core cryptocurrency infrastructure.

Jeff Dean was the primary designer and implementor of the initial TensorFlow system, open-sourced in 2015, which became one of the most widely adopted machine learning frameworks in the world. He currently leads work on Gemini, Google's flagship large language model effort, in his role as Chief Scientist across Google DeepMind and Google Research. Jeff Dean's account has accumulated 447,362 followers as of July 2026 and 9,369 posts, and has been mentioned by 152 accounts a total of 504 times.

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The accounts that follow Jeff Dean include 1,077 founders, 224 angel investors, 270 influencers and 25 VCs, among them Balaji, Brian Armstrong, Sam Altman, Marc Andreessen, Toly and Ansem.