Lightning V3
Text-to-Speech built for Voice Agents
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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.
PH · launched Apr 2, 2026 · 321 upvotes (top 32%) · 1 view
Niche: speech and voice ai models · 143 launches, 7 in the last 7 days ▼ -30% · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- Developer
- AI-native
- Commercial product
- Languages
- Artificial Intelligence
- Audio
Visit website ↗ Source listing ↗
More like this: all 143 launches in speech and voice ai models →
Could you build this?
No Lightning V3 is a custom low-latency (100ms) neural text-to-speech foundation model with multilingual support and studio audio synthesis.
What it would actually take: Requires proprietary audio datasets, advanced deep learning speech synthesis architectures (e.g. flow-matching, neural audio codecs, diffusion/autoregressive TTS), and custom GPU inference engines (TensorRT-LLM/CUDA kernels) to achieve 100ms streaming latency.
Competitors
Other products that read as similar to this one : 574 launches clear the similarity bar, closest 8 shown.
Attention rank: #214 of 575 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 147 days after the earliest competitor.
- ema-lightning · github · 2026-10-05 · 154 upvotes · similarity 0.61
- Grok Voice 3.0 · ph · 2026-10-15 · 3 upvotes · similarity 0.59
- AssemblyAI · ph · 2026-10-29 · 76 upvotes · similarity 0.57
- SpeechGenAI: AI Voice Studio · ph · 2026-10-11 · 2 upvotes · similarity 0.53
- Vistara AI Calling Platform · ph · 2026-10-24 · 1 upvotes · similarity 0.53
- Nari Qwen3-TTS and Qwen3-ASR · hn · 2026-09-14 · 90 upvotes · similarity 0.53
- Bulbul V4 Flash · ph · 2026-10-17 · 3 upvotes · similarity 0.52
- Toolscase Voice Studio · ph · 2026-10-15 · 1 upvotes · similarity 0.52
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