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13 resources
OpenVoice by MyShell.ai is a free open-source voice-cloning AI that clones any voice from a short audio sample. Multilingual, controllable emotion/accent, MIT license. Best free ElevenLabs alternative for self-hosting.
https://research.myshell.ai/open-voiceMusicGen by Meta AI is a free open-source AI music generator that creates original songs from text or melody prompts. Generate royalty-free background music, soundtracks, and beats — no signup, runs locally, MIT license.
https://github.com/facebookresearch/audiocraftDistil-Whisper is a free open-source speech-to-text AI by Hugging Face — 6x faster and 49% smaller than Whisper, with 99% of the accuracy. MIT license, runs on CPU, perfect for transcription, podcasts, and subtitles.
https://huggingface.co/distil-whisperStable Audio 2.0 by Stability AI is a free AI music and sound generator that creates full 3-minute tracks from text prompts. Audio-to-audio transformations, structured musical arrangements. Best free music AI for content creators.
https://stability.ai/news/stable-audio-2-0VITS is a free open-source end-to-end text-to-speech AI that produces natural human-like voice from text in one step. MIT license, fast inference, supports multiple languages and voice cloning. Foundation of modern open TTS.
https://github.com/jaywalnut310/vitsFastSpeech 2 by Microsoft is a free open-source non-autoregressive text-to-speech AI that's 3x faster than Tacotron 2. MIT license, supports pitch/duration/energy control. Perfect for real-time TTS in production apps.
https://speechresearch.github.io/fastspeech2/SpeechT5 by Microsoft is a free open-source unified speech model that handles TTS, ASR, voice conversion, and speech-to-text translation in one architecture. MIT license, perfect for multi-task speech AI applications.
https://www.microsoft.com/en-us/research/publication/speecht5-unified-modal-encoder-decoder-pre-training-for-spoken-language-processing/wav2vec 2.0 by Meta AI is the foundational self-supervised speech recognition model. Free, open-source, MIT license. Powers free transcription, voice command systems, and supports 100+ languages with minimal training data.
https://ai.meta.com/blog/wav2vec-20-learning-the-structure-of-speech-from-raw-audio/DeepSpeech is Mozilla's free open-source speech-to-text engine based on Baidu's research. Runs offline on Raspberry Pi and mobile devices. Apache 2.0, perfect for privacy-first voice apps and embedded systems.
https://deepspeech.readthedocs.io/