Omni Video Text To Speech Generator
omni voice is the world's most multilingual AI voice generator that clones voices and creates natural speech across 646 languages
Apache 2.0 · Open Source · No Sign-Up Required
Everything You Need to Work With Voice
Natural Text to Speech in Any Language
Type your text and omni voice generates clear, natural-sounding audio in seconds. Supports 646 languages with a single unified model — no language-switching, no extra setup.
Clone Any Voice in Seconds
Upload a 3–30 second audio sample. omni voice captures the speaker's tone, accent, and rhythm — then replicates it across any language. No training required.
Build a Voice From a Text Description
No audio on hand? Describe what you want: 'female, low pitch, British accent.' omni voice creates a matching voice from your words alone.
Laughter, Sighs, and Real Emotion
Add [laughter] or [sigh] inline in your script. omni voice renders non-verbal sounds naturally — the way people actually speak.
Omni Voice Text To Speech
One model. Every language.
- ✓646 languages, one unified model
- ✓Natural prosody and intonation across language families
- ✓Pronunciation control via phoneme annotations (English) and Pinyin (Mandarin)
- ✓Speed control: 0.5×–2.0× output rate
Clone Any Voice — Zero Training Required
Record from your mic or upload a file.
Reference in, voice out.
- ✓Reference audio: as short as 3 seconds
- ✓Auto-transcription via Whisper ASR — no manual transcript needed
- ✓Cross-lingual cloning: one voice, any language
- ✓Noise-robust: works even with imperfect reference recordings
No Microphone Needed. Just Describe the Voice.
Omni Voice in Action
Audiobook Narration
Long-form content generation
NPC Dialogue
Dynamic game character voices
Podcast Intro
Professional studio quality
Language Tutor
Clear, articulate pronunciation
Customer Support
Empathetic conversational agent
News Anchor
Authoritative broadcast style
Why omni voice Outperforms the Rest?
Widest Language Coverage
646 Languages — No Competitor Comes Close
ElevenLabs supports 32 languages. PlayHT covers 132. omni voice covers 646 — including hundreds of low-resource languages the major platforms have never touched.
Higher Accuracy
Lower Error Rate Than ElevenLabs
In a 24-language benchmark, omni voice achieved 2.85% word error rate — compared to 10.95% for ElevenLabs. More accurate speech means fewer re-generations and better listener experience.
Source: arXiv 2604.00688, Table 3
Better Voice Similarity
Closer to the Original Speaker
omni voice scores 0.830 on speaker similarity (SIM-o) across multilingual benchmarks, vs. 0.655 for ElevenLabs. Your cloned voices sound like the person — not a rough approximation.
Source: arXiv 2604.00688, Table 3
Production-Ready Speed
~45× Faster Than Real-Time
omni voice runs at RTF 0.022 on batch inference — generating a 60-second audio file in roughly 1.3 seconds. Fast enough for real-time applications, scalable enough for large batch jobs.
Cross-Lingual Voice Cloning
Clone Once, Speak in Any Language
Clone a voice from an English recording and generate speech in Mandarin, Arabic, or Swahili — in the same voice. No per-language samples needed.
One Model, No Pipeline Complexity
Single-Stage Architecture
Most TTS systems use a two-stage pipeline (text → semantic → audio), which compounds errors. omni voice maps text directly to audio in a single pass — simpler, faster, and more consistent.
omni voice vs. the Competition
| Feature | omni voice | ElevenLabs | PlayHT |
|---|---|---|---|
| Languages | 646 | 32 | 132 |
| Multilingual WER | 2.85% | 10.95% | — |
| Speaker Similarity | 0.830 | 0.655 | — |
| Price | Free | $5–$1,320/mo | $31–$99/mo |
| Open Source | Yes | No | No |
| Voice Design (text-only) | Yes | No | No |
| Cross-Lingual Cloning | Yes | Limited | No |
| Inference Speed | ~45× RT | — | — |
* WER and SIM-o data: omni voice arXiv paper 2604.00688, Table 3, 24-language evaluation.
Frequently Asked Questions
