arXiv Computation and Language By Lukas Edman, Alexander Fraser

Qwenfant: Train Big Character-level BabyLMs on Concise Parallel Text

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The paper presents Qwenfant, a Qwen3-based model trained on concise parallel text for the 2026 BabyLM Challenge’s Multilingual track. By leveraging LLM-summarized and translated data, a larger model size, and a character-level vocabulary—both fine-tuned with LoRA—the authors achieve a top ranking in the competition.

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