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arXiv:2508.09148cs.LG

Motif 2.6B Technical Report

Junghwan Lim, Sungmin Lee, Dongseok Kim, Eunhwan Park, Hyunbyung Park, Junhyeok Lee, Wai Ting Cheung, Dahye Choi, Jaeheui Her, Jaeyeon Huh, Hanbin Jung, Changjin Kang, Beomgyu Kim, Jihwan Kim, Minjae Kim, Taehwan Kim, Youngrok Kim, Haesol Lee, Jeesoo Lee, Kungyu Lee, Dongpin Oh, Yeongjae Park, Bokki Ryu, Daewon Suh, Dongjoo Weon

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Abstract

Recent advancements in Large Language Models (LLMs) have revolutionized artificial intelligence, yet developing an effective foundational LLM that balances high performance with computational efficiency remains challenging, especially for emerging research groups. To address this gap, we introduce Motif-2.6B, a 2.6-billion-parameter foundation model designed to democratize advanced LLM capabilities. Motif-2.6B incorporates several innovative architectural enhancements, including Differential Attention and PolyNorm activation functions, which improve long-context comprehension, reduce hallucination, and enhance in-context learning capabilities. We rigorously tested multiple novel architectural components through extensive experimentation to determine the optimal architecture for Motif-2.6B. Comprehensive evaluations demonstrate that Motif-2.6B consistently meets or exceeds the performance of similarly sized state-of-the-art models across diverse benchmarks, showcasing its effectiveness, scalability, and real-world applicability. Through detailed experiments and tailored techniques, Motif-2.6B significantly advances the landscape of efficient, scalable, and powerful foundational LLMs, offering valuable insights and a robust foundation for future research and deployment.

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cs.LGMachine Learning cs.AIArtificial Intelligence

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