ElevenLabs blind tests Eleven v4 voice model, wins all 8 languages on expressiveness

JenniferHli · x · 2026-10-16

ElevenLabs published blind head-to-head preference tests of its Eleven v4 voice model against Gemini 3.8 Flash TTS, Cartesia Sonic 3.6, and Inworld TTS-2 across eight languages, with listeners picking v4 as more expressive in every matchup.

Per the shared chart (September 2026 testing, ties counted as half), v4 beat Gemini 3.8 Flash TTS by narrower margins (51%–70%), Cartesia Sonic 3.6 by 62%–84%, and Inworld TTS-2 by 69%–95%, peaking at 95% in German.

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