OpenBMB/VoxCPM2: Tokenizer-Free TTS Model With 30-Language Support and Voice Cloning at 17.2K Stars, +410 Today

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VoxCPM2 is a 2B-parameter tokenizer-free text-to-speech model from OpenBMB that directly generates continuous speech via diffusion autoregressive architecture, bypassing discrete tokenization. Trained on 2M+ hours of multilingual speech data, it supports 30 languages at 48kHz native output without language tags. Voice cloning requires only 3-10 seconds of reference audio and runs at 6x realtime on consumer GPUs. Apache-2.0 licensed and free for commercial use.