OpenMOSS/MOSS-TTS
An open-source model family for long-form speech, dialogue synthesis, voice design, sound effects, and real-time streaming TTS
Build with Backblaze B2
SDKs, agent skills, IDE extensions, and reference pipelines from Backblaze Labs. All open source.
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Where it stands
Rank, growth pace and release cadence relative to everything GStars tracks.
The project lists 20 contributors on GitHub.
Peaked at #73 in the weekly ranking the week of Apr 19, its best in the past year.
Use Cases & Benefits
- Provides an open-source family of high-fidelity, expressive speech and sound generation models for long-form speech, dialogue, voice design, sound effects, and real-time streaming TTS.
- Enables stable, multilingual, multi-speaker, and real-time speech synthesis with fine-grained control and torch-free lightweight deployment options.
- Use for building multilingual, zero-shot voice cloning TTS systems that generate natural long-form speech with phoneme and duration control.
- Use for creating expressive multi-turn dialogue agents with low-latency streaming speech synthesis for voice assistants and conversational AI.
- Use for generating diverse voice styles and environmental sound effects for games, films, and interactive media without requiring reference audio.
Should you depend on it?
License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.
License
Apache 2.0
Permissive: commercial use, modification and redistribution are allowed with attribution; includes an explicit patent grant from contributors.
Community files
- README: present
Watch-outs
- No GitHub releases; pin a commit or tag instead of a release.
General guidance from repository metadata, not legal advice. How we score
From the README
MOSS‑TTS Family is an open‑source speech and sound generation model family from MOSI.AI and the OpenMOSS team. It is designed for high‑fidelity, high‑expressiveness, and complex real‑world scenarios, covering stable long‑form speech, multi‑speaker dialogue, voice/character design, environmental sound effects, and real‑time streaming TTS.
Daily snapshots
Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots
Forks
382+31
Open issues
24+11
Compared with peers in LLM
Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth
| Repository | Stars | +7d | Health | Last release |
|---|---|---|---|---|
| thedotmack/claude-mem | 113.6K | +8.8K | 35 | today |
| NVIDIA/auto-ontology | 7.5K | +5.6K | 37 | — |
| HKUDS/DeepTutor | 55.5K | +5.5K | 65 | 5 days ago |
| affaan-m/ECC | 297.9K | +5.2K | 63 | 35 days ago |
| DietrichGebert/ponytail | 185.3K | +5.1K | 60 | 7 days ago |
| OpenMOSS/MOSS-TTS | 4.3K | — | 17 | — |
| Category median | 113.6K | +5.5K | 60 | — |
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