Speech Translation and Metrics in 2026: Findings of the IWSLT Campaign

David Ifeoluwa Adelani, Victor Agostinelli, Antonios Anastasopoulos, Luisa Bentivogli, Ondřej Bojar, Sébastien Bratières, Marine Carpuat, Fabrício Carraro, Roldano Cattoni, Mauro Cettolo, Lizhong Chen, Marcello Federico, Marco Gaido, Mahendra Gupta, HyoJung Han, Ali Hatami, Lewis C. Howe, Dávid Javorský, Yejin Jeon, Marek Kasztelnik, Antoine Laurent, Danni Liu, Nam Luu, Min Ma, Dominik Macháček, Marie Maltais, Evgeny Matusov, John McCrae, Chutong Meng, Chandresh Kumar Maurya, Mohammad Mohammadamini, Yasmin Moslem, Kenton Murray, Satoshi Nakamura, Matteo Negri, Jan Niehues, Atul Kr. Ojha, John E. Ortega, Siqi Ouyang, Sara Papi, Peter Polák, Fabian Retkowski, Stephanny Sánchez, Beatrice Savoldi, Claytone Sikasote, Matthias Sperber, Sebastian Stüker, Katsuhito Sudoh, Marie Tahon, Marco Turchi, Alexander Waibel, Patrick Wilken, Rodolfo Joel Zevallos, Vilem Zouhar, Maike Züfle


Abstract
This paper reports on the outcomes of the shared tasks organized as part of the 23rd International Workshop on Spoken Language Translation (IWSLT). The workshop covered ten major challenges in spoken language translation, including speech-to-text translation for both high-resource and low-resource language pairs, customized speech translation, speech generation, instruction-following speech processing, and the evaluation of speech translation systems. The shared tasks received strong participation, with more than 30 teams submitting runs. This year’s edition broadened the range of tasks, placing particular emphasis on speech generation and evaluation metrics.
Anthology ID:
2026.iwslt-1.39
Volume:
Proceedings of the 23rd International Conference on Spoken Language Translation (IWSLT 2026)
Month:
July
Year:
2026
Address:
San Diego, USA (in-person and online)
Editors:
Elizabeth Salesky, Antonios Anastasopoulos, Matteo Negri, Marcello Federico
Venues:
IWSLT | WS
SIG:
SIGSLT
Publisher:
Association for Computational Linguistics
Note:
Pages:
336–422
Language:
URL:
https://aclanthology.org/2026.iwslt-1.39/
DOI:
Bibkey:
Cite (ACL):
David Ifeoluwa Adelani, Victor Agostinelli, Antonios Anastasopoulos, Luisa Bentivogli, Ondřej Bojar, Sébastien Bratières, Marine Carpuat, Fabrício Carraro, Roldano Cattoni, Mauro Cettolo, Lizhong Chen, Marcello Federico, Marco Gaido, Mahendra Gupta, HyoJung Han, Ali Hatami, Lewis C. Howe, Dávid Javorský, Yejin Jeon, Marek Kasztelnik, Antoine Laurent, Danni Liu, Nam Luu, Min Ma, Dominik Macháček, Marie Maltais, Evgeny Matusov, John McCrae, Chutong Meng, Chandresh Kumar Maurya, Mohammad Mohammadamini, Yasmin Moslem, Kenton Murray, Satoshi Nakamura, Matteo Negri, Jan Niehues, Atul Kr. Ojha, John E. Ortega, Siqi Ouyang, Sara Papi, Peter Polák, Fabian Retkowski, Stephanny Sánchez, Beatrice Savoldi, Claytone Sikasote, Matthias Sperber, Sebastian Stüker, Katsuhito Sudoh, Marie Tahon, Marco Turchi, Alexander Waibel, Patrick Wilken, Rodolfo Joel Zevallos, Vilem Zouhar, and Maike Züfle. 2026. Speech Translation and Metrics in 2026: Findings of the IWSLT Campaign. In Proceedings of the 23rd International Conference on Spoken Language Translation (IWSLT 2026), pages 336–422, San Diego, USA (in-person and online). Association for Computational Linguistics.
Cite (Informal):
Speech Translation and Metrics in 2026: Findings of the IWSLT Campaign (Adelani et al., IWSLT 2026)
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PDF:
https://aclanthology.org/2026.iwslt-1.39.pdf