Gemini TTS
Gemini TTS from Google delivers natural, expressive text-to-speech with support for multiple languages and speakers. Built on Google's Gemini architecture, it produces high-quality voice output with fine-grained control over pacing, tone, and vocal style. The model supports multi-speaker dialogue and is suitable for voiceovers, narration, and interactive applications.
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Gemini TTS from Google delivers natural, expressive text-to-speech with support for multiple languages and speakers. Built on Google's Gemini architecture, it produces high-quality voice output with fine-grained control over pacing, tone, and vocal style. The model supports multi-speaker dialogue and is suitable for voiceovers, narration, and interactive applications.
Connect Claude, Cursor, VS Code, or Codex to Layer’s MCP server and Gemini TTS becomes a tool your agent can reach for — it picks the parameters, runs the generation, and shows you the result in the conversation.
https://mcp.app.layer.ai/mcpAsk your agent
“Use Gemini TTS for a heavy stone door grinding open in a dungeon.”
execute_forge({
"base_model_id": "gemini-tts",
"prompt": "A heavy stone door grinding open in a dungeon",
"batch_size": 1
})Authenticate with a personal access token, post the model’s own form, and poll the inference until it completes. Every field below is accepted by this endpoint.
# Start the generation — returns an inference id straight away.
curl -X POST https://api.app.layer.ai/api/v2/workspaces/$WORKSPACE_ID/base-models/gemini-tts/inferences \
-H "Authorization: Bearer $LAYER_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"prompt": "A heavy stone door grinding open in a dungeon"
}'
# Poll until status is "complete" — the response then carries the asset URLs.
curl https://api.app.layer.ai/api/v2/workspaces/$WORKSPACE_ID/inferences/$INFERENCE_ID \
-H "Authorization: Bearer $LAYER_TOKEN"- prompt stringrequired
- The text the voice speaks.
- temperature numberdefault 10–2
- How much the delivery varies. Lower is more predictable.
- style_instructions string
- How the voice should sound: its character, mood and pace.
- prompt_language string
- The language the voice speaks in.
Why use Gemini TTS for audio?
Natural voice generation
Gemini TTS produces expressive, high-quality audio suitable for character dialogue, narration, and voiceover work.
Flexible content types
Supports a range of use cases from in-game dialogue and cinematics to marketing narration and social media content.
Fast iteration
Generate and refine audio content quickly, enabling rapid prototyping of character voices and sound design.
Character voiceover and dialogue production
Generate expressive character voices for in-game dialogue, cutscenes, and interactive narratives. Iterate on tone and delivery rapidly.
Marketing narration and promotional audio
Create professional voiceovers for trailers, app store videos, and social media content without booking voice talent.
Sound design exploration and prototyping
Quickly prototype sound effects, ambient audio, and musical elements to test creative directions early in production.
FAQ
How much does Gemini TTS cost? Is it free?+
How does Layer's pricing work?+
There are no seat fees, feature gates, or plans on Layer. Instead, our platform uses a consumption based system with Creative Units (CUs) with a flexible monthly subscription. Every generation on Layer (image, video, 3D, or audio) consumes a Creative Unit, and you only pay for what you create.
Other audio models on Layer
Gemini 3.8 Flash TTS
Google's expressive text-to-speech model with style direction and inline vocal events.
Gemini 3.8 Flash Lite TTS
The lighter, lower-cost tier of Google's Gemini 3.8 text-to-speech model.
Gemini 3.1 Flash TTS
Google's most controllable TTS model with 200+ audio tags for vocal style and delivery.
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