Models

KugelAudio exposes Kugel 3 as its text-to-speech model, Luchs 1 for speech to text, and Clarity 1 for speech enhancement.

New here? Use kugel-3. It supports voice cloning, streaming, multilingual generation, IPA, timestamps, and break tags.

Current models

Model ID	Name	Best for
`kugel-3`	Kugel 3	Voice agents, narration, brand voices, streaming, and multilingual TTS
`luchs-1`	Luchs 1	Speech to text over REST or streaming WebSocket. See Speech to text.
`clarity-1`	Clarity 1	Speech enhancement: removing background noise from speech, or keeping one speaker’s voice and removing every other voice and sound, for recordings or live audio. See Speech enhancement.

Legacy model IDs

kugel-2.5, kugel-2-turbo, kugel-2, kugel-1, and kugel-1-turbo are aliases that run on kugel-3. Usage and billing show the ID you sent. kugel-1 and kugel-1-turbo keep their 5,000-character input limit. Use kugel-3 in new integrations.

Example

Python
JavaScript
cURL

audio = client.tts.generate(
    text='Welcome to KugelAudio. <break time="400ms"/> How can I help you today?',
    model_id="kugel-3",
    voice_id=1071,
    cfg_scale=2.0,
)

const audio = await client.tts.generate({
  text: 'Welcome to KugelAudio. <break time="400ms"/> How can I help you today?',
  modelId: 'kugel-3',
  voiceId: 1071,
  cfgScale: 2.0,
});

curl -X POST https://api.kugelaudio.com/v1/tts/generate \
  -H "Authorization: Bearer $KUGELAUDIO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "Welcome to KugelAudio. <break time=\"400ms\"/> How can I help you today?",
    "model_id": "kugel-3",
    "voice_id": 1071,
    "cfg_scale": 2.0
  }' \
  --output output.pcm

Capabilities

Capability	`kugel-3`
Voice cloning (zero-shot)	Supported
IPA custom pronunciation	Supported
Built-in text normalization	Supported
Input text streaming	Supported
Output audio streaming	Supported
Word-level timestamps	Supported
Multilingual TTS	39 languages, single multilingual model
Break tags (`break` element)	Supported
Sample rate	24 kHz native; 8 kHz, 16 kHz, 22.05 kHz, 24 kHz, and 44.1 kHz output options
Max input length	10,000 characters

Listing models

GET /v1/models returns the current models only; legacy IDs are accepted but not listed. See the /v1/models reference.

Next steps

Quick Start

Make your first request with kugel-3

Voices

Pick a voice or clone your own

Get started

Build a voice agent

Generate audio

Voices

Enhance audio

Hosting and deployment

SDK Reference

API Reference

Current models

Legacy model IDs

Example

Capabilities

Listing models

Next steps

Quick Start

Voices

​Current models

​Legacy model IDs

​Example

​Capabilities

​Listing models

​Next steps

Quick Start

Voices

Current models

Legacy model IDs

Example

Capabilities

Listing models

Next steps