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Realtime TTS-2

Voice AI that feels as good as it sounds

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Realtime TTS 1.5 is #1 on Artificial Analysis, voted best in blind tests by thousands of real users. TTS-2 builds on that with six major upgrades: natural language voice direction for tone, emotion, speed, and pitch. Text-based voice design, where you describe a voice in words and generate it. Cross-lingual synthesis across 100+ languages preserving speaker identity. IPA phonetic control for brand names and rare words. And improved alphanumeric pronunciation. Try it free at inworld.ai/tts.

PH · launched May 6, 2026 · 152 upvotes (top 99%) · 0 views

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
  • API
  • Developer Tools
  • Artificial Intelligence

Visit website ↗ Source listing ↗

Could you build this?

No Developing state-of-the-art low-latency text-to-speech models with prompt-based voice direction and zero-shot voice cloning requires proprietary model training, massive audio datasets, and specialized ML researchers.

What it would actually take: This requires designing and training neural audio codecs, diffusion models, or autoregressive audio transformers on tens of thousands of hours of studio-quality speech datasets. It requires specialized deep learning engineers, heavy GPU compute clusters for training, and custom CUDA kernels to achieve ultra-low streaming latency (<100ms). Building the model itself cannot be substituted by prompt engineering.

Competitors

Other products that read as similar to this one : 572 launches clear the similarity bar, closest 8 shown.

Attention rank: #573 of 573 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 184 days after the earliest competitor.

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.