> ## Documentation Index
> Fetch the complete documentation index at: https://docs.venice.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Gradium TTS API

> Gradium TTS API on Venice: text to speech with 12 voices at $47.50 per 1M characters (about $0.0392 per minute). Anonymized access without your identity.

> [accordion] Plain-text specification
>
> ## Gradium TTS API
>
> Gradium TTS is a text-to-speech model by Gradium, available on the Venice API as `tts-gradium-v1`. Requests are anonymized, so the provider never sees your identity.
>
> ### Gradium TTS API pricing
>
> | Model ID | Variant | Privacy | Price |
> | - | - | - | - |
> | `tts-gradium-v1` | Standard | Anonymized | \$47.50 / 1M chars |
>
> ### Gradium TTS specifications
>
> | Spec | Value |
> | - | - |
> | Provider | Gradium |
> | Released | Jun 5, 2026 |
> | Privacy | Anonymized |
> | Status | Stable |
> | Voices | 12 |
> | Formats | wav, pcm, opus |
>
> ### How to use the Gradium TTS API
>
> Send requests to `POST https://api.venice.ai/api/v1/audio/speech` with `"model": "tts-gradium-v1"` and your API key.
>
> ```bash theme={"system"}
> curl https://api.venice.ai/api/v1/audio/speech \
>   -H "Authorization: Bearer $VENICE_API_KEY" \
>   -H "Content-Type: application/json" \
>   -d '{
>     "model": "tts-gradium-v1",
>     "input": "Private AI for everyone.",
>     "voice": "Alice",
>     "response_format": "mp3"
>   }' --output speech.mp3
> ```
>
> ### Related models
>
> * [Chatterbox HD (Resemble AI) API](https://docs.venice.ai/models/chatterbox-hd.md): \$50.00 / 1M chars
> * [ElevenLabs TTS v4 Turbo API](https://docs.venice.ai/models/elevenlabs-tts-v4-turbo.md): \$46.00 / 1M chars
> * [ElevenLabs Turbo v2.5 API](https://docs.venice.ai/models/elevenlabs-turbo-v2-5.md): \$62.50 / 1M chars
> * [Orpheus TTS API](https://docs.venice.ai/models/orpheus-tts.md): \$62.50 / 1M chars


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