Xtts
App in the BluixApps catalog
What it is
XTTS-v2 is Coqui AI's multilingual text-to-speech model — 17 languages, voice cloning from 6-second samples, expressive emotional delivery, streaming output. Industry-leading open TTS, the canonical choice for self-hosted speech synthesis projects.
The voice equivalent of "open SDXL" — best-in-class open weights with permissive commercial terms.
What it's for
- Multi-lingual TTS — 17 languages from one model
- Voice cloning — 6-second sample → speech in cloned voice
- Real-time streaming — chunked audio output, low latency
- Cross-lingual generation — English speaker → speak in Spanish/French/Italian
- Emotion-aware delivery — natural prosody, not robotic
- API server — REST endpoints for programmatic use
Who it's for
- Podcast producers generating multi-language content
- Game studios creating character voices
- Educational platforms narrating content in multiple languages
- Marketers producing demo videos at scale
- Accessibility teams auto-narrating articles for screen readers
- Hosting providers selling voice synthesis services
Why teams pick XTTS-v2 over alternatives
- MPL-2.0 / CPML license — fully open; commercial OK with attribution
- 17 languages — broader coverage than F5-TTS, ChatTTS
- Voice cloning quality — 6-second sample is impressive
- Streaming server — production-ready API
- Coqui pedigree — speech-tech veterans (formerly Mozilla DeepSpeech team)
- Active community — frequent fine-tuned forks for specific languages
Integrations
- REST API server —
/tts_streamendpoint for programmatic use - WebSocket support for real-time streaming
- Speaker library — reference voice samples stored persistently
- HuggingFace integration — model versions tracked
- Pair with Whisper — speech → text → translate → re-speak in new voice
- Pair with LLM — text generation → XTTS narration
Notable users & community
- 33k+ GitHub stars (parent Coqui TTS repo)
- Coqui AI (founded by ex-Mozilla DeepSpeech team)
- Industry-standard for open TTS
- Used in commercial products + academic research
- Active fine-tuning community on HuggingFace
Tips & operations
- Reference voice: 6-30 seconds, clean speech, low noise, single speaker
- Languages supported: en, es, fr, de, it, pt, pl, tr, ru, nl, cs, ar, zh-cn, ja, hu, ko, hi
- VRAM: 6 GB GPU optimal, 4 GB CPU fallback works
- Streaming mode: chunk size affects latency vs throughput tradeoff
- Speaker storage:
/opt/xtts/speakers/keeps your reference voices - Production: reverse proxy + auth, rate limiting via gateway
- License caveat: voice cloning has misuse potential — disclose AI-generated audio
What we ship in BluixApps
- Docker (ghcr.io/coqui-ai/xtts-streaming-server:latest-cuda121)
- Persistent volumes: models, output, speakers (reference voices)
- COQUI_TOS_AGREED=1 + MODEL_NAME pre-set
- Port 5002 (default XTTS) with Swagger docs at /docs
- Install report at
/root/bluixapps/xtts.txt - Acceptable Use Policy noted (no impersonation without consent)
- Sample API calls for voice cloning + text-to-speech in install report
- GPU pre-flight check via
bluixapps_ensure_nvidia_runtime - Backup hook covers speakers + outputs
Get this app — pick a BluixApps plan
Same catalog. Scaling tenant isolation, white-label and support tier.
| Tier | Tenants | Catalog | Support | White-label | Monthly | |
|---|---|---|---|---|---|---|
| Stacks | 1 | 19 curated stacks | Standard | — | $19/mo | DetailDeploy |
| Starter | 10 | Full catalog | Standard | +$15–25/mo | $49/mo | DetailDeploy |
| Pro | 25 | Full catalog | Priority bugfix | +$15–25/mo | $149/mo | DetailDeploy |
| Growth | 100 | Full catalog | Priority bugfix | +$15–25/mo | $349/mo | DetailDeploy |
| Scale | 500 | Full catalog | 7-day window | +$15–25/mo | $799/mo | DetailDeploy |
| Enterprise | Unlimited | Full catalog | Priority 7-day | Bundled | $1,499/mo | DetailDeploy |
