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Text-to-Speech · Multilingual

Filipino

Language

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Benchmarks

X
Y
200ms400ms600ms800ms12001400160018002000Time to first audio lower is betterNaturalness higher is betterGemini 3.1-flash-tts-previewSoniox tts-rt-v2ElevenLabs eleven_v3_conversationalOpenAI gpt-4o-mini-ttsxAI Grok ttsMiniMax speech-2.8-hdCartesia sonic-3.5Inworld tts-2speko.ai/benchmarks

Naturalness

higher is better

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

field averagetied with bestInworldInworldtts-21251Cartesiasonic-3.51597MiniMaxMiniMaxspeech-2.8-hd1598xAI Groktts1657OpenAIgpt-4o-mini-tts1676ElevenLabseleven_v3_conversational1693SpeechifySpeechifysimba-3.51704Sonioxtts-rt-v21790GeminiGemini3.1-flash-tts-preview2012
8001200160020002400

Time to first audio

lower is better

The pause the caller hears before the agent starts speaking. Figures are the English measurement — Filipino has no sweep of its own yet.

Cartesiasonic-3.5108ms · 234ms
InworldInworldtts-2112ms · 125ms
xAI Groktts251ms · 291ms
ElevenLabseleven_v3_conversational255ms · 298ms
MiniMaxMiniMaxspeech-2.8-hd329ms · 429ms
Sonioxtts-rt-v2406ms · 462ms
OpenAIgpt-4o-mini-tts724ms · 1.03s
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.

Gemini0.90
MiniMax0.85
0.67
Inworld0.53
0.32
0.00
0.00
0.000.250.500.751.00

Cost

lower is better

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

$13
$15
$20
$20
$25
$33
$50
$50
$100
Sonioxtts-rt-v2xAI GrokttsOpenAIgpt-4o-mini-ttsSpeechifySpeechifysimba-3.5InworldInworldtts-2GeminiGemini3.1-flash-tts-previewElevenLabseleven_v3_conversationalCartesiasonic-3.5MiniMaxMiniMaxspeech-2.8-hd