Moderate
Speed
Excellent
Quality
Yes
Cloning
1
Languages
About StyleTTS 2
StyleTTS 2 achieves human-level text-to-speech synthesis through style diffusion and adversarial training. It can transfer speaking styles from reference audio while generating highly natural speech that rivals real human recordings. StyleTTS 2 represents the state-of-the-art in TTS quality and naturalness.
Key Features
Human-Level Quality
Produces speech indistinguishable from human recordings in blind tests.
Style Transfer
Transfer speaking style from any reference audio sample.
Natural Prosody
Perfect rhythm, stress, and intonation with diffusion-based modeling.
Voice Cloning
Clone voices with exceptional accuracy and naturalness.
Fast Inference
Faster than autoregressive models while maintaining quality.
Open Source
MIT licensed with full commercial use rights.
Use Cases
Premium Audiobooks
Professional Voiceovers
Film & TV Production
High-End Advertising
Podcast Production
Voice Acting
StyleTTS 2 Voices
View All 6StyleTTS2 Default
ENStyleTTS2 Expressive
ENStyleTTS2 Fast
ENStyleTTS2 Natural
ENStyleTTS2 Neutral
ENStyleTTS2 Quality
ENFrequently Asked Questions
StyleTTS 2 is a state-of-the-art text-to-speech model that achieves human-level speech synthesis. It uses style diffusion and adversarial training to produce speech that is virtually indistinguishable from real human recordings in blind listening tests.
StyleTTS 2 is open-source under MIT license. On TextToSpeechAI, we charge 50 credits per 1000 characters (our Ultra tier) because it produces the highest quality output and requires significant compute resources.
Currently, StyleTTS 2 primarily supports English. The model was trained on English datasets. For multilingual needs with similar quality, consider F5-TTS which supports multiple languages.
StyleTTS 2 has moderate generation speed - faster than autoregressive models like Tortoise but slower than Piper. A typical sentence generates in 2-5 seconds on GPU, offering an excellent speed-quality balance.
StyleTTS 2 extracts speaking style from reference audio samples. It captures not just the voice but also speaking patterns, rhythm, and emotional qualities. Provide 10-30 seconds of clear audio for best results.
StyleTTS 2 produces the highest quality TTS audio available. In formal evaluations, it achieved human-level ratings on MOS (Mean Opinion Score) tests, with listeners unable to distinguish it from real human speech.
StyleTTS 2 requires 4-6GB of VRAM for inference. It is more memory-efficient than Bark or Tortoise while producing higher quality output. A mid-range GPU like RTX 3060 works well.
Yes, StyleTTS 2 is MIT licensed and permits full commercial use. It is ideal for professional applications where the highest audio quality is required.
Select a StyleTTS 2 voice from our library or upload reference audio to create a cloned voice. Use the voice in your API requests, and we handle all processing to deliver premium quality audio.
StyleTTS 2 outputs high-quality WAV audio at 24kHz. Through TextToSpeechAI, you can request MP3, WAV, or OGG formats. We use high-quality encoding to preserve the exceptional audio quality.
StyleTTS 2 supports speaking rate adjustments. Style transfer allows you to influence prosody by selecting different reference audio samples with your desired speaking characteristics.
StyleTTS 2 produces the highest quality speech among all TTS engines. Choose it when quality is paramount. For faster processing, use Piper. For multilingual support with cloning, use F5-TTS. For expressive speech with emotions, use Bark.
Technical Specs
- Generation Speed Moderate
- Output Quality Excellent
- Voice Cloning Supported
- Languages 1
- GPU VRAM 4-6GB
- Credits/1000 chars 50