Audio

Gemini 3.1 Flash TTS audio

Gemini 3.1 Flash TTS — narração com direção de estilo em linguagem natural, 30 vozes e 70+ idiomas.

Category: Text-to-speech · gemini-3-1-flash-tts

Capabilities

What this model supports, straight from the schema — no pricing, no infrastructure detail.

Capability	Value
`tts` Text-to-speech	Yes
`voice` Voice selection	Yes
`voices` Available voices	30
`style_instructions` Style Instructions	Yes

Parameters

Fields accepted in params (or first-class, where applicable) for POST /generations.

Name	Label	Type	Required	Default	Options	Min / Max
`text`	Texto	textarea	Required	—	—	—
`voice`	Voz	select	Optional	Kore	Kore · Puck · Charon · Zephyr · Aoede · Fenrir · Leda · Orus · Callirrhoe · Autonoe	—
`style_instructions`	Direção de estilo	textarea	Optional	—	—	—
`language_code`	Idioma	text	Optional	—	—	—

Example request

bash

curl -X POST https://caranguejo.art/api/v1/dev/generations \
  -H "Authorization: Bearer $CK" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gemini-3-1-flash-tts",
  "text": "a neon crab on a beach at sunset, cinematic style",
  "params": {
    "voice": "Kore",
    "style_instructions": "…",
    "language_code": "…"
  }
}'

javascript

const res = await fetch("https://caranguejo.art/api/v1/dev/generations", {
  method: "POST",
  headers: {
    "Authorization": "Bearer " + process.env.CK,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "gemini-3-1-flash-tts",
    "text": "a neon crab on a beach at sunset, cinematic style",
    "params": {
      "voice": "Kore",
      "style_instructions": "…",
      "language_code": "…"
    }
  }),
});
const { data } = await res.json();

Example response

json

{
  "id": "9f0c1a7e-…",
  "object": "generation",
  "model": "gemini-3-1-flash-tts",
  "type": "audio",
  "status": "completed",
  "output": {
    "assets": [
      {
        "url": "https://media.caranguejo.art/outputs/example.mp3",
        "type": "audio"
      }
    ]
  }
}

The job's real cost is returned as credits_charged on the completed response — check GET /balance for the account balance.

Common errors for this job type:

`insufficient_credits`	Account balance can't cover the job cost.
`content_policy_violation`	Prompt or media rejected by content policy.
`generation_timeout`	The job exceeded the maximum processing time.
`rate_limited`	Too many requests per minute.
`invalid_input`	A required parameter is missing or outside the model's schema.
`generation_failed`	Generic processing failure.