# Edge0 releases Audio8-TTS-Realistic, a 0.6B open-weight voice cloning model

Digest AI · Generative AI & Models · published 2026-10-30T05:02:52Z

Canonical: https://digestai.news/story/edge0-releases-audio8-tts-realistic-a-0-6b-open-weight-voice-cloning-m

## Summary

Edge0 has released Audio8-TTS-Realistic, an open-weight text-to-speech model designed for zero-shot voice cloning. The 0.6B-parameter model supports 23 languages, adding 12 to its predecessor, and is available under the Apache 2.0 license. It requires a reference audio clip and transcript to clone a voice, with weights and code shipped together for easy deployment.

The architecture uses a dual-autoregressive design inspired by Fish Audio S2 Pro, built on a Qwen2.5 0.5B base. Edge0 reports that the model achieves a 4.86% average error rate on the CV3 benchmark across 9 languages, outperforming larger open models like Qwen3-TTS-1.7B and VoxCPM2. However, performance on lower-resource languages remains weak, with a 48.57% word error rate on Thai. The company notes that while the model is competitive, 4B-class models like Higgs TTS 3 still lead on certain benchmarks.

For developers, the model is optimized for efficiency, running on a single CUDA GPU with peak memory usage of 1.1 to 1.2 GiB on an Apple M2 CPU in INT4 format. Edge0 emphasizes that the training process includes a learned realism critic to improve naturalness beyond standard word error rate metrics. A free playground is available on Hugging Face ZeroGPU for testing.

## Key points

- Edge0 released Audio8-TTS-Realistic, a 0.6B open-weight TTS model supporting 23 languages under Apache 2.0.
- The model reports a 4.86% average error on CV3, beating Qwen3-TTS-1.7B but trailing 4B-class models.
- Deployment requires a CUDA GPU or Apple M2 CPU, with peak memory usage of 1.1 to 1.2 GiB in INT4.

## Why it matters

This release offers a lightweight, open-weight option for multilingual voice cloning, allowing developers to deploy realistic TTS on modest hardware without proprietary API costs.

## Sources

1. [Edge0 Releases Audio8-TTS-Realistic, a 0.6B Voice Cloning TTS Model](https://marktechpost.com/2026/10/29/edge0-audio8-tts-realistic-0-6b-voice-cloning) (MarkTechPost, 2026-10-30)

## Cite

Digest AI, "Edge0 releases Audio8-TTS-Realistic, a 0.6B open-weight voice cloning model", 30 October 2026, https://digestai.news/story/edge0-releases-audio8-tts-realistic-a-0-6b-open-weight-voice-cloning-m

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