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KugelAudio’s Kugel is a multilingual TTS model with expressiveness control. It comes in two variants:
  • Kugel 1 Turbo — low-latency, optimized for real-time voice agents
  • Kugel 1 — standard quality with full expressiveness control
You can control expressiveness with cfg_scale (0–10, default 2) and playback speed with speed (0.8–1.2). The same voice catalog is shared across both variants. 
{
  "type": "config",
  "voice_id": 272,
  "model_id": "kugel-1-turbo",
  "cfg_scale": 2,
  "speed": 1.0,
  "sample_rate": 24000
}

​
Supported languages

LanguageCodeVoices
Englishen8
Spanishes4
Frenchfr4
Germande55
Italianit4
Portuguesept4
Dutchnl5
Polishpl4
Czechcs4
Sloveniansl4
Turkishtr4

​
English

Voice IDNameSampleGenderAgeToneUse Case
285Angela TeacherfeminineAdultinformative_educationalVoice Agents, Customer Support
287ChuckermasculineAdultConversationalVoice Agents, Customer Support
290EdinafeminineAdultinformative_educationalVoice Agents, Customer Support
293FredmasculineAdultConversationalVoice Agents, Customer Support
292GustavmasculineElderConversationalVoice Agents, Customer Support
284Justin News AnchormasculineAdultentertainment_tvVoice Agents, Customer Support
289Lukas StorytellermasculineElderConversationalVoice Agents, Customer Support
286TimmasculineAdultConversationalVoice Agents, Customer Support

​
Spanish

Voice IDNameSampleGenderAgeToneUse Case
594Carlos FernándezmasculineAdultConversationalVoice Agents, Customer Support
595Héctor AguilarmasculineAdultConversationalVoice Agents, Customer Support
592Isabel TorresfeminineAdultConversationalVoice Agents, Customer Support
588Paula VegafeminineAdultConversationalVoice Agents, Customer Support

​
French

Voice IDNameSampleGenderAgeToneUse Case
732Camille DupontfeminineAdultConversationalVoice Agents, Customer Support
735Julien FauremasculineAdultConversationalVoice Agents, Customer Support
734Manon PetitfeminineAdultConversationalVoice Agents, Customer Support
736Nicolas LeroymasculineAdultConversationalVoice Agents, Customer Support

​
German

Showing 10 of 55 voices. See the full catalog in the SLNG dashboard.
Voice IDNameSampleGenderAgeToneUse Case
468Amelie KraftfeminineYoung AdultConversationalVoice Agents, Customer Support
448Andreas SchwarzmasculineAdultConversationalVoice Agents, Customer Support
265Angela ÖsterreicherinfeminineAdultnarrative_storyVoice Agents, Customer Support
410Anna HoffmannfeminineAdultConversationalVoice Agents, Customer Support
973Anna MartinfeminineAdultConversationalVoice Agents, Customer Support
480Carla BrandtfeminineYoung AdultConversationalVoice Agents, Customer Support
439Christine KühnfeminineYoung AdultConversationalVoice Agents, Customer Support
977Dominik GrundmasculineAdultConversationalVoice Agents, Customer Support
255DurchsagemasculineAdultnarrative_storyVoice Agents, Customer Support
422Elisabeth FuchsfeminineAdultConversationalVoice Agents, Customer Support

​
Italian

Voice IDNameSampleGenderAgeToneUse Case
684Alessandro RiccimasculineAdultConversationalVoice Agents, Customer Support
682Beatrice SerrafeminineAdultConversationalVoice Agents, Customer Support
685Simone BarbierimasculineAdultConversationalVoice Agents, Customer Support
683Valentina BrunafeminineAdultConversationalVoice Agents, Customer Support

​
Portuguese

Voice IDNameSampleGenderAgeToneUse Case
604André CardosomasculineAdultConversationalVoice Agents, Customer Support
601Daniela CamposfeminineAdultConversationalVoice Agents, Customer Support
603Marcelo TeixeiramasculineAdultConversationalVoice Agents, Customer Support
606Mariana FerreirafeminineAdultConversationalVoice Agents, Customer Support

​
Dutch

Voice IDNameSampleGenderAgeToneUse Case
966Claudy FocanmasculineAdultcharacters_animationVoice Agents, Customer Support
910Daan MuldermasculineAdultConversationalVoice Agents, Customer Support
913Hanna KuiperfeminineAdultConversationalVoice Agents, Customer Support
911Lars de VriesmasculineAdultConversationalVoice Agents, Customer Support
912Rosa van den BergfeminineAdultConversationalVoice Agents, Customer Support

​
Polish

Voice IDNameSampleGenderAgeToneUse Case
744Dawid KwiatkowskimasculineAdultConversationalVoice Agents, Customer Support
742Dominika NowakfeminineAdultConversationalVoice Agents, Customer Support
743Katarzyna LewandowskafeminineAdultConversationalVoice Agents, Customer Support
745Krzysztof WiśniewskimasculineAdultConversationalVoice Agents, Customer Support

​
Czech

Voice IDNameSampleGenderAgeToneUse Case
741Jakub DvořákmasculineAdultConversationalVoice Agents, Customer Support
737Tereza NovákováfeminineAdultConversationalVoice Agents, Customer Support
740Tomáš HorákmasculineAdultConversationalVoice Agents, Customer Support
739Veronika BenešováfeminineAdultConversationalVoice Agents, Customer Support

​
Slovenian

Voice IDNameSampleGenderAgeToneUse Case
849Ana NovakfeminineAdultConversationalVoice Agents, Customer Support
847Andrej PotočnikmasculineAdultConversationalVoice Agents, Customer Support
850Katja BreznikfeminineAdultConversationalVoice Agents, Customer Support
848Matej KovačmasculineAdultConversationalVoice Agents, Customer Support

​
Turkish

Voice IDNameSampleGenderAgeToneUse Case
583İbrahim YıldızmasculineAdultConversationalVoice Agents, Customer Support
584Mehmet KayamasculineAdultConversationalVoice Agents, Customer Support
585Seda_AktaşfeminineAdultConversationalVoice Agents, Customer Support
586Zeynep ArslanfeminineAdultConversationalVoice Agents, Customer Support