Channel
Pixel
gemini-3.8-flash-ttsdefaultcheapestPrice
from $0.018 / 1,000 chars
GetVibeAPITheme
Language
Voice
Gemini 3.8 Flash TTS API — how to connect and pay
Google Gemini 3.8 Flash TTS — next-generation speech synthesis: 30 voices, multilingual (the language is detected automatically), delivery control via style_instructions. The Flash Lite engine is cheaper. Priced per 1000 characters, billed in proportion to the text length.
Channel comparison
last 7 days
Channel
Flow
gemini-3.8-flash-tts:flowPrice
from $0.04 / 1,000 chars
| Channel | Price |
|---|---|
Pixel gemini-3.8-flash-ttsdefaultcheapest | from $0.018 / 1,000 chars |
Flow gemini-3.8-flash-tts:flow | from $0.04 / 1,000 chars |
Build the result you need
gemini-3.8-flash-ttsInput: TextSome modes require you to attach: delivery style (instruction)
What is Gemini 3.8 Flash TTS
Google Gemini 3.8 Flash TTS — next-generation speech synthesis: 30 voices, multilingual (the language is detected automatically), delivery control via style_instructions. The Flash Lite engine is cheaper. Priced per 1000 characters, billed in proportion to the text length.
Contract at a glance
- Input
- text
- Output
- audio
- Mode
- async (job + polling)
- Status polling
- every 3 s · up to 90 s
Strengths
- Pricing: per 1K characters
- Inputs: text
- 2 configurable options
- One API key for media generation
Where it is used
- Video voiceovers
- Voice scripts
- Audio versions of text
- Recording cleanup
API contract
Generation runs asynchronously: create a job, then poll its status until completion.
- Create job
- POST /api/media/generate
- Check status
- GET /api/media/jobs/{jobId}
- Input
- text
- Output
- audio
- Polling
- every 3 s · up to 90 s
- Authentication
- Authorization: Bearer sk-pv-…
Example request
Pass your key in the Bearer header. The API returns jobId for polling the status.
curl -sS https://getvibeapi.com/api/media/generate \
-H "Authorization: Bearer $GETVIBE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary '{"model":"gemini-3.8-flash-tts","prompt":"a beautiful landscape","opts":{"engine":"flash","gemini_voice":"Kore"}}'JavaScript
const response = await fetch('https://getvibeapi.com/api/media/generate', {
method: 'POST',
headers: {
Authorization: `Bearer ${process.env.GETVIBE_API_KEY}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({
"model": "gemini-3.8-flash-tts",
"prompt": "a beautiful landscape",
"opts": {
"engine": "flash",
"gemini_voice": "Kore"
}
}),
});
if (!response.ok) throw new Error(`GetVibe API: ${response.status}`);
const { jobId } = await response.json();
console.log(jobId);API request parameters
Parameters for requests to Gemini 3.8 Flash TTS via the GetVibe API.
Parameter
promptreq.Type
text
Values
text description
Default
required
Price
—
Parameter
engineType
option selection
Values
Gemini 3.8 Flash TTS (default) · Gemini 3.8 Flash Lite TTS
Default
Gemini 3.8 Flash TTS
Price
Gemini 3.8 Flash TTS: $0.03, Gemini 3.8 Flash Lite TTS: $0.018
Parameter
gemini_voiceType
option selection
Values
Achernar · Achird · Algenib · Algieba · Alnilam · Aoede · Autonoe · Callirrhoe · Charon · Despina · Enceladus · Erinome · Fenrir · Gacrux · Iapetus · Kore (default) · Laomedeia · Leda · Orus · Pulcherrima · Puck · Rasalgethi · Sadachbia · Sadaltager · Schedar · Sulafat · Umbriel · Vindemiatrix · Zephyr · Zubenelgenubi
Default
Kore
Price
Included in the base price
Parameter
style_instructionsType
text / number
Values
any value
Default
—
Price
Included in the base price
| Parameter | Type | Values | Default | Price |
|---|---|---|---|---|
promptreq. | text | text description | required | — |
engine | option selection | Gemini 3.8 Flash TTS (default) · Gemini 3.8 Flash Lite TTS | Gemini 3.8 Flash TTS | Gemini 3.8 Flash TTS: $0.03, Gemini 3.8 Flash Lite TTS: $0.018 |
gemini_voice | option selection | Achernar · Achird · Algenib · Algieba · Alnilam · Aoede · Autonoe · Callirrhoe · Charon · Despina · Enceladus · Erinome · Fenrir · Gacrux · Iapetus · Kore (default) · Laomedeia · Leda · Orus · Pulcherrima · Puck · Rasalgethi · Sadachbia · Sadaltager · Schedar · Sulafat · Umbriel · Vindemiatrix · Zephyr · Zubenelgenubi | Kore | Included in the base price |
style_instructions | text / number | any value | — | Included in the base price |
Request: POST https://getvibeapi.com/api/media/generate. Prices in USD.
Price of Gemini 3.8 Flash TTS
The cost of Gemini 3.8 Flash TTS: from $0.018 per 1K characters. The price is calculated dynamically at the current exchange rate, and the final charge is shown in the API response (priceRub). Payment in USD, no subscriptions.
What a default request costs
With no parameters sent, the request uses these values: Engine — Gemini 3.8 Flash TTS, Gemini voice — Kore. That request costs $0.03.
“from $0.018” is the cheapest parameter set, not the price of a default request.
Channels and prices for every parameter combination
For every channel, the price of every parameter combination. It is exactly the amount a successful generation is charged, and the same figure as in the machine-readable table linked below.
Pixelgemini-3.8-flash-ttsfrom $0.018 / 1,000 charsexact prices
| Engine | Gemini 3.8 Flash TTS | Gemini 3.8 Flash Lite TTS |
|---|---|---|
| Pixel | $0.03 / 1,000 chars | $0.018 / 1,000 chars |
Price per 1,000 characters of text. The charge is this price × the number of characters.
Every combination as JSON: /api/media/price-table?model=gemini-3.8-flash-tts
Flowgemini-3.8-flash-tts:flowfrom $0.04 / 1,000 charsexact prices
| Engine | Gemini 3.8 Flash TTS | Gemini 3.8 Flash Lite TTS |
|---|---|---|
| Flow | $0.06 / 1,000 chars | $0.04 / 1,000 chars |
Price per 1,000 characters of text. The charge is this price × the number of characters.
Every combination as JSON: /api/media/price-table?model=gemini-3.8-flash-tts%3Aflow
README
The machine-readable contract for Gemini 3.8 Flash TTS contains the request schema, operations, limits, polling and response examples.
# Gemini 3.8 Flash TTS
Public model: gemini-3.8-flash-tts
Create job: POST /api/media/generate
Check status: GET /api/media/jobs/{jobId}
## Input parameters
- `prompt` (text): text description; default: required
- `engine` (option selection): Gemini 3.8 Flash TTS (default) · Gemini 3.8 Flash Lite TTS; default: Gemini 3.8 Flash TTS
- `gemini_voice` (option selection): Achernar · Achird · Algenib · Algieba · Alnilam · Aoede · Autonoe · Callirrhoe · Charon · Despina · Enceladus · Erinome · Fenrir · Gacrux · Iapetus · Kore (default) · Laomedeia · Leda · Orus · Pulcherrima · Puck · Rasalgethi · Sadachbia · Sadaltager · Schedar · Sulafat · Umbriel · Vindemiatrix · Zephyr · Zubenelgenubi; default: Kore
- `style_instructions` (text / number): any value; default: —
## Public variants
- `gemini-3.8-flash-tts`: Pixel
- `gemini-3.8-flash-tts:flow`: FlowFAQ about the Gemini 3.8 Flash TTS API
How much does Gemini 3.8 Flash TTS cost?
The price of Gemini 3.8 Flash TTS: from $0.018 per 1K characters. The price is calculated dynamically at the current exchange rate.
Is it compatible with the OpenAI SDK?
Yes, the API is fully OpenAI-compatible. Just change base_url to https://getvibeapi.com/v1 and set your key — the rest of the code stays the same.
Connect Gemini 3.8 Flash TTS right now
Sign up in a minute, pay per use, ready-made code above.
Get API key