F5-TTS
PremiumFast, Fluent, and Faithful Text-to-Speech with Cloning
Fast
Speed
Very Good
Quality
Yes
Cloning
5
Languages
About F5-TTS
F5-TTS is a non-autoregressive text-to-speech model that achieves fast inference while maintaining high quality and supporting voice cloning. Using flow matching techniques, it generates natural speech with excellent fluency and faithfulness to reference voices. F5-TTS offers a great balance between speed, quality, and cloning capability.
Key Features
Fast Generation
Non-autoregressive architecture for rapid speech synthesis.
Zero-Shot Cloning
Clone any voice from a short audio sample without fine-tuning.
High Fidelity
Flow matching produces natural, high-quality speech output.
Natural Fluency
Smooth prosody and natural rhythm throughout.
Multilingual
Supports multiple languages with natural pronunciation.
Open Source
MIT licensed for full commercial use.
Use Cases
Content Creation
Video Dubbing
Audiobook Production
Podcast Generation
Personalized Assistants
Real-Time Applications
Frequently Asked Questions
F5-TTS (Fast, Fluent, Faithful TTS) is a modern text-to-speech model using flow matching for efficient, high-quality speech synthesis. It supports zero-shot voice cloning and generates natural speech faster than traditional autoregressive models.
Yes, F5-TTS is open-source under MIT license. On TextToSpeechAI, we charge 25 credits per 1000 characters (Premium tier), reflecting its excellent quality and voice cloning capabilities.
F5-TTS supports English, Chinese, and several other languages. The model handles cross-lingual voice cloning, allowing you to use a cloned voice in different languages than the original recording.
F5-TTS is one of the faster high-quality TTS models thanks to its non-autoregressive architecture. It generates speech significantly faster than Bark or Tortoise while maintaining comparable quality.
F5-TTS uses zero-shot voice cloning - provide a reference audio sample (ideally 10-30 seconds), and it extracts speaker characteristics without any training. The cloned voice can then generate any text.
F5-TTS produces very good quality audio with natural prosody and clear articulation. While not quite at StyleTTS 2 level, it offers an excellent balance of quality and speed for most applications.
F5-TTS is memory-efficient, requiring only 3-4GB of VRAM. This makes it accessible on consumer GPUs like the RTX 3060 or even GTX 1660.
Yes, F5-TTS is MIT licensed and fully supports commercial use. Ensure you have rights to clone any voices used in commercial applications.
Select an F5-TTS voice from our library or create a cloned voice by uploading reference audio. Then use the voice ID in your API requests to generate speech.
F5-TTS outputs WAV audio natively. Through TextToSpeechAI, you can request MP3, WAV, or OGG formats with automatic conversion.
Yes, F5-TTS supports speed adjustments for controlling speaking rate. The model naturally captures prosody from reference audio, so pitch characteristics come from your voice clone.
F5-TTS offers the best speed-quality-cloning balance. It is faster than Bark while maintaining good quality and cloning support. For highest quality, use StyleTTS 2. For fastest generation, use Piper.
Technical Specs
- Generation Speed Fast
- Output Quality Very Good
- Voice Cloning Supported
- Languages 5
- GPU VRAM 3-4GB
- Credits/1000 chars 25