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Alternatives to Tacotron 2

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StyleTTS 2StyleTTS 2 achieves human-level TTS synthesis using style diffusion and adversarial training with large speech language models. Open-source and free to use.
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OpenVoice
OpenVoiceOpenVoice is a free, open-source voice cloning AI by MIT and MyShell that supports zero-shot cross-lingual cloning, tone color replication, and granular voice style control.
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Tortoise TTS
Tortoise TTSTortoise TTS is a free, open-source multi-voice TTS system emphasizing realistic prosody and intonation. Clone voices and generate high-quality speech with this research-grade Python library.
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Nari Labs Dia
Nari Labs DiaDia is a 1.6B parameter open-source text-to-speech model that generates ultra-realistic dialogue with emotion control, audio conditioning, and nonverbal sounds in one pass.
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XTTS v2
XTTS v2XTTS v2 is an open-source text-to-speech and voice cloning model supporting 17 languages. Clone any voice with just a 6-second audio clip using the Coqui TTS library.
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MusicGen Meta
MusicGen MetaAudioCraft is Meta AI's open-source framework for generative audio, including MusicGen (text-to-music), AudioGen (text-to-sound), and EnCodec (neural audio codec).
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Coqui AI
Coqui AICoqui AI was an open-source TTS and voice cloning platform featuring the XTTS model, supporting 17+ languages and voice cloning from just 3 seconds of audio.
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Meta ESM
Meta ESMOpen-source pretrained language models for protein sequences. Enables protein structure prediction, mutational effect analysis, and generative protein design using transformer-based architectures.
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Text Generation WebUI
Text Generation WebUIRun large language models locally with Text Generation WebUI — supports text, vision, tool-calling, and fine-tuning. 100% offline, open source, and private.
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TensorFlow Lite
TensorFlow LiteLiteRT (formerly TensorFlow Lite) is Google's open-source framework for deploying ML and GenAI models on Android, iOS, web, desktop, and IoT devices with GPU/NPU acceleration.
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