Changelog
Recent changes and updates to the Nineninesix API.
v0.2.0 — Cartesia-compatible API
- Cartesia-compatible surface:
POST /tts/bytes,POST /tts/sse,GET /tts/websocket,/voicesCRUD,POST /voices/clone - Model:
gepard-1.0 - Real-time WebSocket streaming with per-transcript billing
- Voice cloning and the full Cartesia voice library
- API keys now use the
sk_996_<prefix>_<secret>format, scoped to a project - Prepaid credits: 1 credit per character, $5 per 1M characters, credits never expire
- Per-project tiers (rate + concurrency): tier1 / tier2 / tier3, with auto-upgrade to tier2 at $50 lifetime spend
v0.1.0 — Initial Release
- OpenAI-compatible TTS API (deprecated; replaced by the Cartesia-compatible surface above)