# Nari Labs AI > Nari Labs provides open-source Text-to-Speech (TTS) AI technology for ultra-realistic dialogue and voice cloning, helping you build immersive audio experiences. Nari Labs is a South Korean startup founded by undergraduate students, including Toby Kim, focused on advancing text-to-speech (TTS) technology. Their primary product is Dia, a 1.6 billion parameter open-source TTS model released under the Apache 2.0 license, designed to generate ultra-realistic dialogue from text transcripts. ## Core Features - [Ultra-Realistic Dialogue Synthesis](https://narilabs.org/): Generate natural-sounding conversations with customizable speaker tones, emotional inflections, and nonverbal cues - [Zero-Shot Voice Cloning](https://narilabs.org/): Replicate any speaker's voice from just seconds of reference audio - [Multi-Speaker Support](https://narilabs.org/): Create conversations between multiple distinct voices within a single generation ## About Us - [About Nari Labs](https://narilabs.org/): Learn about our mission and team - [Articles](https://narilabs.org/article): Get the latest news and insights on AI voice technology