Vito
Vito by Return Zero is Korea's best-in-class AI speech recognition platform offering real-time meeting transcription, audio file transcription, and developer APIs with industry-leading Korean STT accuracy.
Vito is an AI-powered speech recognition and transcription platform developed by Return Zero, a Korean AI company founded by former Kakao and Naver engineers who set out to build the most accurate Korean speech recognition technology in the world. The name Vito carries a sense of vitality and precision, and the product lives up to that promise — consistently benchmarking as one of the top performers in Korean automatic speech recognition (ASR) accuracy across diverse acoustic conditions and speaking styles.
The platform's core capability is converting spoken Korean into accurate, readable text at speed. Whether processing a live meeting, a recorded interview, a customer service call, or a video file, Vito handles the conversion with impressive fidelity. The system handles common challenges in real-world speech recognition: overlapping speech, background noise, fast talkers, regional accents, and industry-specific jargon — all areas where generic speech models often struggle but Vito's purpose-built Korean models excel.
One of Vito's most popular features is its meeting transcription service. Teams can upload recorded meetings or connect Vito to live audio streams, and the system produces a timestamped, speaker-separated transcript automatically. The speaker diarization capability identifies who is speaking at any given moment, creating a structured record of the conversation that reads naturally and makes review effortless. This feature has made Vito indispensable for Korean enterprises that need to document meetings, interviews, calls, and conferences efficiently.
Vito provides a robust developer API that makes its speech recognition capabilities available to engineering teams building voice-enabled applications, call analytics systems, podcast transcription tools, accessibility solutions, and more. The API supports streaming transcription for real-time applications as well as batch processing for high-volume file transcription. Documentation is thorough, and the API design follows familiar REST conventions, making integration straightforward for developers already working with other web services.
Beyond Korean, Vito supports English and Japanese transcription, broadening its usefulness for multinational Korean companies and development teams building for international audiences. The platform's pricing model includes a generous free tier — 90 minutes of transcription per month — allowing individuals and small teams to evaluate and use the service at no cost before scaling up with paid plans designed for heavier usage.
Key Features
- Industry-leading Korean speech recognition accuracy, consistently outperforming generic ASR models on Korean audio
- Real-time meeting transcription with live audio stream support for in-progress meetings and calls
- Automatic speaker diarization that identifies and labels each participant in multi-party conversations
- Audio and video file transcription supporting MP3, MP4, WAV, M4A, and other common formats
- Timestamped transcripts for easy navigation and reference within long recordings
- Developer-friendly REST API with support for both streaming (real-time) and batch transcription modes
- Korean, English, and Japanese language transcription for multilingual teams and international use cases
- Custom vocabulary and domain adaptation for industry-specific terminology in finance, medical, and legal fields
- Generous free tier with 90 minutes of transcription per month for individuals and small teams
- Secure data handling with enterprise-grade privacy standards to protect sensitive meeting content
Frequently Asked Questions
How accurate is Vito's Korean speech recognition?
Vito consistently ranks among the top performers in Korean ASR accuracy benchmarks. Return Zero, the company behind Vito, has published competitive results in Korean speech recognition research. In real-world use, Vito handles spontaneous Korean speech — including fast talking, regional accents, and overlapping conversation — with markedly higher accuracy than general-purpose ASR APIs like Google Speech or AWS Transcribe when processing Korean audio.
Can Vito be used for live, real-time transcription?
Yes, Vito supports real-time streaming transcription through its API, allowing developers to build applications that transcribe audio as it is spoken. This capability is suitable for live meeting assistants, real-time subtitling, voice-controlled interfaces, and call center monitoring systems. The web application also supports connecting to live audio for meeting transcription without requiring developer integration.
What is speaker diarization and does Vito support it?
Speaker diarization is the process of automatically identifying who is speaking at each moment in an audio recording with multiple participants. Vito fully supports speaker diarization, labeling each segment of the transcript with the corresponding speaker. This produces structured meeting records that clearly show which person said what, making review, summarization, and action item extraction much easier than working with an undifferentiated block of text.
How does Vito's pricing work?
Vito offers a free tier that includes 90 minutes of transcription per month — enough for light personal use or evaluation purposes. The Standard plan at approximately $10 per month (pricing may vary) provides increased monthly transcription volume suitable for individuals and small teams. Business and enterprise plans offer custom pricing with higher volume, SLA guarantees, API access, and dedicated support. Check the official website for the latest pricing details.
Does Vito support languages other than Korean?
Yes, in addition to Korean, Vito supports English and Japanese transcription. This makes it useful for multinational Korean companies, global development teams, and users who work with content in multiple languages. However, Vito's greatest competitive advantage remains in Korean, where its purpose-built models deliver accuracy that dedicated Korean enterprises specifically seek out.
Alternative Tools
Other Audio tools you might like
ElevenLabs
AudioLeading AI voice synthesis platform offering ultra-realistic text-to-speech, voice cloning, and real-time voice conversion in 32+ languages.
Murf AI
AudioAI voice generator with 120+ studio-quality voices in 20+ languages for creating professional voiceovers for videos, e-learning content, and presentations.
Suno
AudioSuno is an AI music generation platform that creates full songs with vocals, instruments, and lyrics from simple text prompts using the state-of-the-art Suno v4 model.
Typecast
AudioTypecast is a Korean AI voice platform by Neosapience offering 400+ AI voices with emotion and style control, voice cloning, and professional text-to-speech for content creators.
Udio
AudioUdio is an AI music generation platform that creates full songs with vocals from text prompts, known for exceptional audio quality and wide genre support.
Maum AI
AudioMaum AI (formerly MINDs Lab) is a Korean AI company offering enterprise-grade speech synthesis, speech recognition, vision AI, and NLP solutions with industry-leading Korean voice quality.