The State of AI Research 2026 What 3,373,112 ArXiv papers reveal about how AI research is growing — and which ideas are rising and falling. 369X growth in LLM-r
A new report analyzing over 3.3 million arXiv papers from 2021 to 2025 reveals significant growth in AI research, particularly in Large Language Models (LLMs). LLM-related papers saw a 369x increase, accounting for nearly 12% of all arXiv papers in 2025. The analysis also highlighted that over 22% of AI papers self-identified limited generalizability as their primary limitation. AI
IMPACT Highlights rapid LLM growth and persistent challenges in AI generalizability, guiding future research focus.