Preliminary Ranking of WMT25 General Machine Translation Systems

Tom Kocmi; Eleftherios Avramidis; Rachel Bawden; Ondřej Bojar; Konstantin Dranch; Anton Dvorkovich; Sergey Dukanov; Natalia Fedorova; Mark Fishel; Markus Freitag; Thamme Gowda; Roman Grundkiewicz; Barry Haddow; Marzena Karpinska; Philipp Koehn; Howard Lakougna; Jessica Lundin; Kenton Murray; Masaaki Nagata; Stefano Perrella; Lorenzo Proietti; Martin Popel; Maja Popović; Parker Riley; Mariya Shmatova; Steinþór Steingrímsson; Lisa Yankovskaya; Vilém Zouhar

arXiv · 2508.14909

Preliminary Ranking of WMT25 General Machine Translation Systems

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Abstract

We present the preliminary rankings of machine translation (MT) systems submitted to the WMT25 General Machine Translation Shared Task, as determined by automatic evaluation metrics. Because these rankings are derived from automatic evaluation, they may exhibit a bias toward systems that employ re-ranking techniques, such as Quality Estimation or Minimum Bayes Risk decoding. The official WMT25 ranking will be based on human evaluation, which is more reliable and will supersede these results. The official WMT25 ranking will be based on human evaluation, which is more reliable and will supersede these results. The purpose of releasing these findings now is to assist task participants with their system description papers; not to provide final findings.

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Tom Kocmi, Eleftherios Avramidis, Rachel Bawden, Ondřej Bojar, Konstantin Dranch, Anton Dvorkovich, Sergey Dukanov, Natalia Fedorova, Mark Fishel, Markus Freitag, Thamme Gowda, Roman Grundkiewicz, Barry Haddow, Marzena Karpinska, Philipp Koehn, Howard Lakougna, Jessica Lundin, Kenton Murray, Masaaki Nagata, Stefano Perrella, Lorenzo Proietti, Martin Popel, Maja Popović, Parker Riley, Mariya Shmatova, Steinþór Steingrímsson, Lisa Yankovskaya, Vilém Zouhar. 2025-08-11. Preliminary Ranking of WMT25 General Machine Translation Systems. https://arxiv.org/abs/2508.14909

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