Our conversational AI agents talk, text, and email your customers for you. Super fast and super safe. They work right inside the tools you already use. No messy add-ons, no data leaks. Just smooth, fast help for every customer.
This is the 3rd launch from Smallest.ai. View more
Lightning V3
Launched this week
Introducing Lightning V3 — Smallest AI's most advanced text-to-speech model. With 100ms latency, a 3.89 WVMOS score, and support for English, Hindi, Spanish, Tamil and 15+ languages, V3 was preferred over OpenAI's GPT-4o-mini-TTS by listeners 76.2% of the time.
Get audio output in 44.1 kHz and powers voice assistants, IVR systems, content creation and conversational AI with human-like speech. Instant voice cloning from just 10 seconds of audio. Real-time. Expressive. Enterprise-ready.
Free Options
Launch Team / Built With
TTS for voice agents has a different bar than TTS for content - it's not just naturalness, it's latency under real conditions. An agent that pauses 800ms before responding feels broken even if the audio quality is great. Curious how Lightning V3 handles the tradeoff between quality and time-to-first-audio in streaming mode.
Yo, been following the TTS space closely while building voice agents, and Lightning V3 genuinely surprised me. Getting real-time performance and natural prosody in the same model has always felt like a trade-off, this is the first time it hasn't. The multilingual support is a big deal for me as well. Congrats on the launch.
Nas.io
How are you handling voice cloning misuse? Any safeguards in place?
How well does it handle code-switching? Like mixing Hindi + English in the same sentence?
How is it different from ElevenLabs?
I used the voice clone feature! I am able to use the realistic voices in videos that I create loving the experience.