Lightning V3
Add AI Voice & Chat Agents directly to your website.
Lightning V3 launched on April 2, 2026 with 311 votes, #67 of 21,248 launches that month and more than 99% of that year's launches.
In plain words
Lightning V3 is a text-to-speech model designed for voice agents and conversational AI applications. It delivers audio output with 100ms latency and supports over 15 languages including English, Hindi, Spanish, and Tamil. The system produces human-like speech at 44.1 kHz quality and includes voice cloning capabilities from just 10 seconds of audio. It powers voice assistants, IVR systems, content creation, and conversational AI platforms.
written from the facts on this page · September 2026
From the sources
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.
The fastest TTS API on the market. Build voice agents, automate calls, and clone voices instantly. $10 free credits. No setup required.
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