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Speech-to-text Translation research benchmarks – Page 2 · SOTA2 Research

Speech-to-text Translation

Benchmarks

Dataset NameSOTA MethodSort

Dataset NameSOTA methodMetricTrendResultsLast Updated

FLEURS 44 x 11 directions

81S2T Score (X→ara)

6

May 28, 2026

FLEURS 11 x 44 directions

83.3ARA -> X Score

6

May 28, 2026

Fleurs xx↔zh (top59)

Qwen3.5-Omni-Plus

32.8S2T Score

6

Apr 20, 2026

Tatoeba 4392 utterances

30.7SacreBLEU (Fr)

6

Mar 18, 2026

IWSLT25Instruct en-ja

42.17BLEU

6

Mar 13, 2026

83.31COMET Score

5

May 18, 2026

85.03COMET Score

5

May 18, 2026

82.16COMET Score

5

May 18, 2026

82.74COMET Score

5

May 18, 2026

MuST-C English-Spanish (test)

28.21BLEU

5

Feb 27, 2026

MuST-C En-Es (test)

End-to-end (w2v2-mBART)

0.324BLEU

4

Feb 26, 2026

CoVoST2 (average)

80.57Average COMET Score

3

Jun 16, 2026

Fleurs xx↔en top59

Qwen3.5-Omni-Plus

35.4Score

3

Apr 20, 2026

IWSLT Gle-en 2025 (eval)

40.2BLEU

3

Mar 30, 2026

IWSLT Bem-en 2025 (eval)

26.8BLEU

3

Mar 30, 2026

IWSLT Aeb-en 2025 (eval)

8.39BLEU

3

Mar 30, 2026

HQ Podcasts en-ru

40.12BLEU

3

Mar 13, 2026

HQ Podcasts en-de

43.7BLEU

3

Mar 13, 2026

HQ Podcasts en-ja

49.42BLEU

3

Mar 13, 2026

IWSLT25Instruct en-ru

42.75BLEU

3

Mar 13, 2026

33.9BLEU

3

Feb 26, 2026

CoVoST de→en 2 (test)

ELF-S2T (ELF-L)

28.55BLEU

2

Jun 11, 2026

36BLEU

2

Feb 26, 2026

39.7BLEU

2

Feb 26, 2026

CoVoST XX -> EN

26.4Japanese S2T Score (CoVoST)

1

Jul 7, 2026

Page 2 of 3

Popular datasets

MuST-C CoVoST FLEURS IWSLT CVSS

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