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arXiv · 2511.18411

SmolKalam: Ensemble Quality-Filtered Translation at Scale for High Quality Arabic Post-Training Data

Sultan Alrashed·Chadi Helwe·Francesco Orabona
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Abstract

Although the community has tackled the acquisition of high-quality Arabic pretraining data, we still lack large-scale, multi-turn Arabic datasets that include reasoning and tool calling. Naive translation can work at the pretraining scale, but post-training demands much higher quality, which requires a stricter approach to dataset curation. In this work, we introduce SmolKalam, a translation of Smoltalk2 that uses a multi-model ensemble translation pipeline, applies quality filtering, and examines effective translation techniques for traditional decoder-only models through ablations.

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Sultan Alrashed, Chadi Helwe, Francesco Orabona. 2025-11-23. SmolKalam: Ensemble Quality-Filtered Translation at Scale for High Quality Arabic Post-Training Data. https://arxiv.org/abs/2511.18411

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