Directory / Speech APIs (STT/TTS)
Smallest AI Lightning V3
Low-latency text-to-speech model built for voice agents
Visit Smallest AI Lightning V3 ↗Who it's for
Voice agent developers, IVR and support teams
Review: pros & cons
Lightning V3 is Smallest AI's text-to-speech model designed for voice agents, offering around 100ms latency, 15+ languages and instant voice cloning from seconds of audio. Its pro is speed suitable for real-time conversation. Limitation: language coverage is narrower than the largest TTS providers, so some global use cases may need another engine.