| Model Name | Parameters | Base Model | License | RTF (Real-Time Factor) |
|---|---|---|---|---|
| MioTTS-0.1B | 0.1B | tiiuae/Falcon-H1-Tiny-Multilingual-100M-Base | Falcon-LLM License | 0.04 - 0.05 |
| MioTTS-0.4B | 0.4B | LiquidAI/LFM2-350M | LFM Open License v1.0 | 0.035 - 0.045 |
| MioTTS-0.6B | 0.6B | Qwen/Qwen3-0.6B-Base | Apache 2.0 | 0.055 - 0.065 |
| MioTTS-1.2B | 1.2B | LiquidAI/LFM2.5-1.2B-Base | LFM Open License v1.0 | 0.065 - 0.075 |
| MioTTS-1.7B | 1.7B | Qwen/Qwen3-1.7B-Base | Apache 2.0 | 0.10 - 0.11 |
| MioTTS-2.6B | 2.6B | LiquidAI/LFM2-2.6B | LFM Open License v1.0 | 0.135 - 0.145 |
RTF values represent the range observed when generating approximately 15 seconds of audio across multiple runs. Measured on an NVIDIA RTX 5090 using vLLM 0.15.1.
Note: The reference audio samples below were generated using Aratako/T5Gemma-TTS-2b-2b and gemini-2.5-pro-tts.
| Case | Text | Reference Audio | Generated Audio |
|---|---|---|---|
| English 1 | "The old library was silent, save for the gentle ticking of a clock somewhere in the shadows. As I ran my fingers along the dusty spines of the books, I felt a strange sense of nostalgia, as if I had lived a thousand lives within these walls." | ||
| English 2 | "Hey! I haven't seen you in ages. Do you want to grab some coffee later? I've got so much to tell you!" | ||
| Japanese 1 | "気象庁によりますと、大型の台風10号は、明日の明け方にかけて関東地方に接近する見込みです。沿岸部では高波に警戒が必要です。" | ||
| Japanese 2 | "その森には、古い言い伝えがありました。月が最も高く昇る夜、静かに耳を澄ませば、風の歌声が聞こえるというのです。私は半信半疑でしたが、その夜、確かに誰かが私を呼ぶ声を聞いたのです。" |
1@misc{miotts,
2 author = {Chihiro Arata},
3 title = {MioTTS: Lightweight and Fast LLM-based Text-to-Speech},
4 year = {2026},
5 publisher = {Hugging Face},
6 journal = {Hugging Face repository},
7 howpublished = {\url{https://huggingface.co/collections/Aratako/miotts}}
8}