F5-TTS
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A to Z
- A · App
- No
- B · Built By
- Community
- C · CEO & Politics
- N/A (academic research) — No public partisan activity documented
- D · Date
- 2024
- E · Expertise
- Intermediate+
- F · Free Tier
- Yes
- G · Generates
- Text only
- H · Deployment
- Cloud + Local (open weights)
- I · Inputs
- Text
- J · Jurisdiction
- Open-source/community
- K · Key Staffers
- Yushen Chen (Lead author), Xie Chen (Corresponding author)
- L · Languages
- English-primary
- M · Model Type
- Speech Synthesis
- N · Safety Issues
- Synthetic audio risks: voice cloning or impersonation misuse, copyright/style imitation concerns, and possible unsafe or biased outputs depending on deployment safeguards.
- O · Open Source
- Yes — open weights
- P · Pricing
- Free (code MIT; pretrained weights CC BY-NC 4.0: non-commercial)
- Q · AIDb Rating
- [UNKNOWN]
- R · What Makes It Special
- F5-TTS, an open text-to-speech system built as a flow-matching diffusion transformer with ConvNeXt V2 for faster training and inference, plus Sway Sampling, an inference-time strategy that improves quality; it speaks in the voice of a supplied reference clip and its transcript. Code is MIT, while the pretrained models are CC BY-NC because of their Emilia training data.
- S · Stock / Status
- Research / open-source project
- T · Training Cutoff
- [UNKNOWN]
- U · Users
- [UNKNOWN]
- V · Voice Chat
- No
- W · Weights
- Downloadable
- X · X Handle
- [UNKNOWN]
- Y · Year Founded
- [UNKNOWN]
- Z · Bottom Line
- Open-weights Speech Synthesis from Community, released 2024.
Data completeness 81% · Last verified 2026-05-12 · Primary source ↗
Cite this
“F5-TTS.” AIDb — The AI Database. Verified 2026-05-12. https://theaidatabase.com/m/f5-tts.html
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