Researcher · Founder · Executive · Academic
Veselin Stoyanov
Lightfield AICo-founder and Head of AI
Stoyanov helped develop RoBERTa and XLM-R, influential language models that improved text understanding across tasks and languages. He later led applied AI teams at Meta and Tome and now builds AI-first customer-management software as Lightfield AI's co-founder and head of AI.
Career & education
Lightfield AINov 2024-present
MBZUAI
Meta
Cornell University
University of DelawareWork and education history is primarily focused on AI-relevant roles and may not be comprehensive.
Citation Trend
Selected contributions
RoBERTa: A Robustly Optimized BERT Pretraining Approach
With Yinhan Liu, Myle Ott, Naman Goyal, Jingfei Du, Mandar Joshi, Danqi Chen, Omer Levy and others ·Showed that better training choices could improve BERT without changing its core architecture.
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Reviewed August 8, 2026 · Checked for accuracy and new information.