Smallest.ai announced Lightning V3, its most advanced real‑time TTS model for conversational AI.
Lightning V3 scored 3.89 MOS, with intonation 3.33 and prosody 3.07, beating OpenAI, Cartesia and ElevenLabs.
The model supports 15 languages, instant voice cloning from 5‑15 s audio, streaming at 44.1 kHz and pay‑as‑you‑go pricing.