What is VoxCPM?
No dated launch filed yetApache-2.0
Summary
Apache-2.0 tokenizer-free TTS from OpenBMB. VoxCPM2 is a 2B model with 30 languages, voice design, cloning, and 48 kHz output.
- Category
- Voice models
- Open source
- Yes
- License
- Apache-2.0
- Models
- VoxCPM2
- Pricing
- Weights and code are Apache-2.0, including commercial use, per the repository.
VoxCPM2 is the current recommended release in the OpenBMB/VoxCPM repository. The April 2026 news line lists 2B parameters, 30 languages, voice design, controllable cloning, and 48 kHz audio. The README also quotes real-time factor on an RTX 4090 of about 0.30, and about 0.13 with Nano-vLLM or vLLM-Omni. Those figures are the project's, measured on that GPU.
The model is in Best free AI voice models in 2026.
VoxCPM alternatives
| Tool | License | Pricing note |
|---|---|---|
VoxCPMThis pageApache-2.0 tokenizer-free TTS from OpenBMB. VoxCPM2 is a 2B model with 30 languages, voice design, cloning, and 48 kHz output. | Apache-2.0 | Weights and code are Apache-2.0, including commercial use, per the repository. |
Qwen3-TTSApache-2.0 speech models from the Qwen team, 0.6B and 1.7B, with voice clone, voice design, and 10 languages. | Apache-2.0 | Weights and code are Apache-2.0. No hosted price is quoted on the repository README we used. |
ChatterboxMIT-licensed TTS from Resemble AI. Chatterbox Multilingual V3 is a 500M model for 23 or more languages with zero-shot cloning. | MIT | The model card lists an MIT license. No API price is copied here. |
MOSS-TTSApache-2.0 speech family from OpenMOSS. MOSS-TTS-v1.5 supports 31 languages, with separate models for realtime streaming and voice design. | Apache-2.0 | The repository says models in the family are Apache-2.0. |
KokoroApache-2.0 TTS model with 82 million parameters. Version 1.0, published January 27, 2025, lists 8 languages and 54 voices. | Apache-2.0 | Apache-2.0 weights. The model card says API hosts were under $1 per million characters as of April 2025. Self-hosting has no license fee. |
Launches and updates
No dated launch has been filed for VoxCPM yet. The description above is from the project’s own pages.
Guides covering VoxCPM
Questions
What is VoxCPM2?
VoxCPM2 is OpenBMB's 2B text-to-speech model. The README says it was trained on over 2 million hours of speech, supports 30 languages, voice design, controllable voice cloning, and 48 kHz output. Weights and code are Apache-2.0.
When was VoxCPM2 released?
The OpenBMB README news line dates the VoxCPM2 release to April 2026.