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Text-to-Speech research benchmarks – Page 2 · SOTA2 Research

Text-to-Speech

Benchmarks

Dataset NameSOTA MethodSort

Dataset NameSOTA methodMetricTrendResultsLast Updated

Seed-TTS-Eval (test-hard)

CosyVoice 3.0-0.5B

5.09Character Error Rate (CER)

17

Jun 23, 2026

LibriSpeech clean PC (test)

1.98WER (%)

17

Feb 26, 2026

Seed-TTS Seed-ZH (Evaluation)

0.89CER

16

Feb 26, 2026

0DTW

16

Feb 26, 2026

LibriTTS (test)

4.54MOS

16

Jun 1, 2026

2.43WER

15

Jun 8, 2026

75Score (Angry)

15

Jun 2, 2026

5.71CER

15

Apr 1, 2026

WildSpoof Seen speakers 2026 (Evaluation)

3.956UTMOS

15

May 25, 2026

InstructTTSEval EN

92.3APS

15

Feb 26, 2026

4.47MOS

15

Jun 16, 2026

Seed-TTS-Eval English

1.39WER

14

Jun 23, 2026

Seed-TTS English (test)

1.47WER

14

Apr 27, 2026

LibriTTS zero-shot

PeriodWave-Turbo-L

4.303UTMOS

14

Mar 5, 2026

VCTK 10H budget v0.92 (train)

Unfrozen SPARCLE

9.9WER

12

Jul 3, 2026

VCTK 5H training budget v0.92

8.5WER (%)

12

Jul 3, 2026

VCTK 1H training budget v0.92

7.5WER

12

Jul 3, 2026

VCTK 30m budget v0.92 (train)

10WER

12

Jul 3, 2026

VCTK 10m budget v0.92 (train)

42.2WER

12

Jul 3, 2026

LibriSpeech-PC subset B

1.95WER

12

Jun 9, 2026

6.83CER

12

May 19, 2026

Japanese ambiguous pronunciation dataset (Male)

95.8Accuracy

12

Apr 28, 2026

Japanese ambiguous pronunciation dataset (Female)

94.9Accuracy

12

Apr 28, 2026

SeedTTS English (test)

1.69WER

12

Feb 26, 2026

Qwen3-Omni-A3B-Instruct

1.07WER

12

Apr 15, 2026

Page 2 of 13

Popular datasets

LibriSpeech Seed-TTS Multilingual LEMAS-TTS IndicTTS Database

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