Gemini 3.8 Flash TTS
Capabilities & pricing
Gemini 3.8 Flash TTS is designed for turning text into a voice track with an intended mood and delivery.
- Base rate
- from 12 tokens per 1,000 characters
- Category
- Audio
- Access
- MCP + website
- Payment
- Syntasy tokens
What can you do with Gemini 3.8 Flash TTS?
Turn text into speech
Prepare narration, an explanation or a short message. Punctuation and phrasing help establish natural pauses.
Shape the delivery
Choose a voice and available settings for calm explanation, an energetic introduction or neutral reading. Test the delivery on a short excerpt.
Where it fits
Video voiceovers, explainers, audio content and spoken messages.
How to get a useful result
Expand ambiguous abbreviations, check numbers and set the intended delivery through the available controls.
How much does it cost?
Current tariffs from the Syntasy catalog. Choose a mode and settings; check the final estimate before starting.
| Mode | Settings | Syntasy tokens |
|---|---|---|
| Text to speech | Text input | 12 tokens per 1,000 characters |
This is the rate for the specified billing unit. Duration, output count and input length may change the total.
Available modes
Text to speech
Text input
Use Gemini 3.8 Flash TTS via MCP
Connect Syntasy in your AI client and authorize access. Ask it to find this model, calculate the price and show the settings before generation.
- Open Access & tokens in the MCP section and create an MCP token.
- Add the server URL to your client:
/api/mcp - Ask: “Find Gemini 3.8 Flash TTS. Show its modes and estimate the cost before starting.”
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "syntasy_list_models",
"arguments": {
"kind": "audio",
"query": "Gemini 3.8 Flash TTS"
}
}
}The example discovers models and does not start a paid generation. Replace YOUR_MCP_TOKEN with your own token.
Frequently asked questions
What are Syntasy tokens?
They are the shared balance used to pay for models in Syntasy. Token pack prices are available on the pricing page. View token packs
Why can the final cost differ from the base rate?
A per-second tariff is multiplied by duration, an image tariff by output count, and a character tariff by text length. Check the estimate on the website or use syntasy_estimate_generation via MCP for your chosen settings.
