Daya Guo Large Model Research Lead, Seed (joined April 2026) — ByteDance Website Google ScholarOpenReview Affiliations ● ByteDance — Large Model Research Lead, Seed (joined April 2026) Formerly: DeepSeek (first author of R1, proposed GRPO); Sun Yat-sen University (PhD) ○ DeepSeek — Former Core Researcher (first author of R1, proposed GRPO; joined ByteDance Seed April 2026) Formerly: Sun Yat-sen University (PhD) News Mentions 2026-04-16 ByteDance Recruits DeepSeek R1 Lead Author Daya Guo for Seed Agent Team SCMP — ByteDance 2026-04-16 DeepSeek R1 Lead Author Daya Guo Joins ByteDance Seed Amid Intensifying AI Talent War SCMP — DeepSeek