MOSS-TTS Nano TTS
A 100M-parameter MOSS-TTS variant — same delay-transformer family, ~80x smaller, tuned for free-tier latency.
Wrap your text in SSML tags for precise control:
<speak><prosody rate="slow">Slow speech</prosody></speak>
Tags the selected model understands — click to drop one into your text where it happens:
This model reads plain text, so inline tags are ignored. For tag-based emotion, switch to an expressive model like Orpheus or Bark.
Define custom pronunciations (word = pronunciation):
About MOSS-TTS Nano
MOSS-TTS Nano is OpenMOSS's compact 100-million-parameter sibling to the flagship MOSS-TTS, sharing the same delay-transformer architecture but roughly 80x smaller. It gives up the 8B model's peak quality in exchange for far lower per-request VRAM (~2GB) and fast ~2-second generation, which makes it well suited to free-tier and high-throughput deployments. It keeps broad multilingual reach across 11 languages and, unlike many lightweight models, still supports zero-shot voice cloning. The result is a budget-friendly option for high-volume or low-latency interactive use where speed and cost matter more than studio fidelity.
Best for: Free-tier TTS, high-volume production, low-latency interactive use
Browse all MOSS-TTS Nano voicesAt a glance
- Developer
- OpenMOSS
- License
- Apache 2.0
- Tier
- free
- Speed
- fast
- Voice cloning
- Yes
- Languages
- English, Chinese, German, Spanish, French, Japanese, Italian, Korean, Russian, Arabic, Portuguese
- Max characters
- 5000