Start building →OverviewMultilingualVoices

Text-to-Speech · Multilingual

French

Language

Request a new language

Tell us which language you want added to this benchmark.

Benchmarks

X
Y
200ms400ms600ms1200140016001800Time to first audio lower is betterNaturalness higher is betterElevenLabs eleven_v3_conversationalSoniox tts-rt-v2xAI Grok ttsInworld tts-2Hume octave-2Soniox tts-rt-v1Cartesia sonic-3.5OpenAI gpt-4o-mini-ttsQwen qwen3-tts-flashMiniMax speech-2.8-hdSmallest lightning_v3.1Rime arcanav3Gradium TTSDeepgram aura-2speko.ai/benchmarks

Naturalness

higher is better

1500 is this language's own field — not comparable across languages.

field averagetied with bestDeepgramaura-21114GradiumTTS1233RimeRimearcanav31316SmallestSmallestlightning_v3.11416MiniMaxMiniMaxspeech-2.8-hd1419QwenQwenqwen3-tts-flash1529OpenAIgpt-4o-mini-tts1535Cartesiasonic-3.51622Sonioxtts-rt-v11628HumeHumeoctave-21671InworldInworldtts-21684xAI Groktts1692Sonioxtts-rt-v21695SpeechifySpeechifysimba-3.51748ElevenLabseleven_v3_conversational1775
800100012001400160018002000

Time to first audio

lower is better

The pause the caller hears before the agent starts speaking.

InworldInworldtts-2117ms · 128ms
Deepgramaura-2122ms · 146ms
Cartesiasonic-3.5124ms · 254ms
SmallestSmallestlightning_v3.1170ms · 209ms
RimeRimearcanav3245ms · 251ms
xAI Groktts251ms · 265ms
GradiumTTS276ms · 286ms
ElevenLabseleven_v3_conversational309ms · 387ms
MiniMaxMiniMaxspeech-2.8-hd311ms · 399ms
QwenQwenqwen3-tts-flash407ms · 435ms
Sonioxtts-rt-v2416ms · 457ms
Sonioxtts-rt-v1425ms · 451ms
HumeHumeoctave-2522ms · 706ms
ElevenLabseleven_v3625ms · 1.63s
OpenAIgpt-4o-mini-tts684ms · 1.01s
GeminiGemini3.1-flash-tts-preview810ms · 987ms
0ms300ms600ms900ms

p50 p90

Robustness

higher is better

Whether the voice says the right words for a number, date, currency amount or operator.

Speechify0.97
0.75
0.73
0.73
Google Chirp0.70
0.70
Gemini0.70
0.68
Inworld0.63
0.63
0.61
Hume0.45
Qwen0.26
Speechify0.10
Rime0.00
0.00
0.00
MiniMax0.00
0.000.250.500.751.00

Cost

lower is better

$ per 1M characters · vendor list price, the same in every language

$10
$13
$13
$15
$18
$20
$20
$25
$30
$33
$40
$50
$50
$58
$58
$100
$100
QwenQwenqwen3-tts-flashSonioxtts-rt-v1Sonioxtts-rt-v2xAI GrokttsSmallestSmallestlightning_v3.1OpenAIgpt-4o-mini-ttsSpeechifySpeechifysimba-3.5InworldInworldtts-2Deepgramaura-2GeminiGemini3.1-flash-tts-previewRimeRimearcanav3ElevenLabseleven_v3_conversationalCartesiasonic-3.5GradiumdefaultGradiumTTSHumeHumeoctave-2MiniMaxMiniMaxspeech-2.8-hd