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Data read October 27, 2026

TTS APIs by language in 2026: 15 languages tested

23 multilingual real-time models are ranked on speed; these pages show which of the 96 models were tested in each of 15 languages. Languages are ordered by the number of models tested, most first.

Frequently asked questions

Which languages can I compare TTS APIs in?
15 languages have a page, starting with the most tested: German, French, Spanish, Chinese, and Japanese. Each page lists the models tested in that language by Artificial Analysis or Speko.
Is TTS speed measured per language?
No. Latency is measured in English from the US East by Coval. The language pages say who was tested in each language, and how fast each model is in general.
Why is there no naturalness score per language?
No public benchmark publishes naturalness or accuracy by language, so none is shown. Nothing is estimated.