All models / gemini-3.1-flash-tts-preview / Google
gemini-3.1-flash-tts-preview
model id: google/gemini-3.1-flash-tts-preview/google
Text in → Audio out
Price
$20 / 1M output (audio) tokens
per 1M output (audio) tokens — plus the input text-token rate below; billed by the response's real usage, not a flat per-character rate
| Token type | Rate |
|---|---|
| Input (text) | $1 / 1M tokens |
| Output (audio) | $20 / 1M tokens |
+ VideoRouter platform fee: 2% of provider cost — billed as its own line, never blended into the rates above.
API
curl https://videorouter.sh/api/v1/audio/speech \
-H "Authorization: Bearer llmr_sk_..." \
-H "Content-Type: application/json" \
-d '{"model": "gemini-3.1-flash-tts-preview", "input": "Hello from VideoRouter", "voice": "Kore"}' \
--output speech.mp3Customer reviews
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