--- title: "VoxCPM vs chatterbox-tts-api" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/openbmb-voxcpm-vs-travisvn-chatterbox-tts-api" tools: ["openbmb-voxcpm", "travisvn-chatterbox-tts-api"] --- # VoxCPM vs chatterbox-tts-api *GraphCanon updated Aug 13, 2026* ## Verdict Pick VoxCPM if voxCPM is a tokenizer-free TTS tool excelling in multilingual speech generation, creative voice design, and lifelike cloning; pick chatterbox-tts-api if chatterbox-TTS-API is a locally hosted Python-based text-to-speech API with capabilities similar to ElevenLabs, offering an OpenAI-compatible interface for generating voice-cloned speech. [VoxCPM](https://voxcpm.com) reports 34k GitHub stars, 3.9k forks, and 99 open issues, last pushed Jul 8, 2026. [chatterbox-tts-api](https://chatterboxtts.com) has 666 stars, 152 forks, and 16 open issues, last pushed Dec 23, 2025. Figures are from public GitHub metadata via [VoxCPM's repository](https://github.com/OpenBMB/VoxCPM) and [chatterbox-tts-api's repository](https://github.com/travisvn/chatterbox-tts-api). | | [VoxCPM](/tools/openbmb-voxcpm.md) | [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) | | --- | --- | --- | | Tagline | Tokenizer-Free TTS for Multilingual Speech Generation, Creative Voice Design, and True-to-Life Cloning | Local OpenAI-compatible text-to-speech API using Chatterbox | | Stars | 34,452 | 666 | | Forks | 3,939 | 152 | | Open issues | 99 | 16 | | Language | Python | Python | | Adopt for | VoxCPM is a tokenizer-free TTS tool excelling in multilingual speech generation, creative voice design, and lifelike cloning. | Chatterbox-TTS-API is a locally hosted Python-based text-to-speech API with capabilities similar to ElevenLabs, offering an OpenAI-compatible interface for generating voice-cloned speech. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | Chatterbox-TTS-API is distributed under the AGPL-3.0 license, ensuring any modifications or derivative works must be shared openly. | | Categories | Inference & Serving, Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [VoxCPM](/tools/openbmb-voxcpm.md) | [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) | | --- | --- | --- | | Maintenance | Active (82%) | Slowing (36%) | | Days since push | 20d | 232d | | Open issues (now) | 99 | 16 | | Owner type | Organization | User | | Full report | [trust report](/tools/openbmb-voxcpm/trust.md) | [trust report](/tools/travisvn-chatterbox-tts-api/trust.md) | ## Shared compatibility - **Python**: [VoxCPM](/tools/openbmb-voxcpm.md) - Python runtime; [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) - Python runtime ## Decision facts: VoxCPM - **Requirements:** Python >= 3.10 (<3.13), PyTorch >= 2.5.0, CUDA >= 12.0.; For production deployment, Nano-vLLM is recommended for its high throughput and concurrent request support. - **Adopt for:** VoxCPM is a tokenizer-free TTS tool excelling in multilingual speech generation, creative voice design, and lifelike cloning. ## Decision facts: chatterbox-tts-api - **Requirements:** Requires a local setup environment that supports CUDA for optimal performance; Docker can simplify deployment. - **Adopt for:** Chatterbox-TTS-API is a locally hosted Python-based text-to-speech API with capabilities similar to ElevenLabs, offering an OpenAI-compatible interface for generating voice-cloned speech. - **License detail:** Chatterbox-TTS-API is distributed under the AGPL-3.0 license, ensuring any modifications or derivative works must be shared openly. ## Choose when ### Choose VoxCPM if… - License: VoxCPM is Apache-2.0, chatterbox-tts-api is AGPL-3.0. - Requirements: Python >= 3.10 (<3.13), PyTorch >= 2.5.0, CUDA >= 12.0.; For production deployment, Nano-vLLM is recommended for its high throughput and concurrent request support.. - Tags unique to VoxCPM: audio, deeplearning, minicpm, multilingual. - Also covers Inference & Serving. - When you need to generate high-quality, lifelike voice clones for multiple languages without the overhead of tokenizers. ### Choose chatterbox-tts-api if… - License: chatterbox-tts-api is AGPL-3.0, VoxCPM is Apache-2.0. - Requirements: Requires a local setup environment that supports CUDA for optimal performance; Docker can simplify deployment.. - Tags unique to chatterbox-tts-api: ai, chatgpt, chatterbox, cuda. - When you need a self-hosted solution that mirrors the functionality of ElevenLabs or other proprietary TTS services and requires compatibility with existing ecosystems like Open WebUI or AnythingLLM. ## When NOT to use VoxCPM - If your project is constrained by hardware with less powerful GPUs than NVIDIA RTX 4090, as VoxCPM might not provide optimal real-time factor performance. - When a simple text-to-speech solution suffices and does not require the advanced features like voice cloning or creative voice design that VoxCPM offers. ## When NOT to use chatterbox-tts-api - If you require integrations specific to ElevenLabs' proprietary voice models as Chatterbox-TTS-API, despite its capabilities, does not directly support their unique voice libraries. - For users needing a fully managed service without the complexities of local deployment and maintenance, like that offered by cloud-based TTS providers. ## Common questions ### What is the difference between VoxCPM and chatterbox-tts-api? VoxCPM: Tokenizer-Free TTS for Multilingual Speech Generation, Creative Voice Design, and True-to-Life Cloning. chatterbox-tts-api: Local OpenAI-compatible text-to-speech API using Chatterbox. See the comparison table for live GitHub stats and shared categories. ### When should I choose VoxCPM over chatterbox-tts-api? Choose VoxCPM over chatterbox-tts-api when License: VoxCPM is Apache-2.0, chatterbox-tts-api is AGPL-3.0; Requirements: Python >= 3.10 (<3.13), PyTorch >= 2.5.0, CUDA >= 12.0.; For production deployment, Nano-vLLM is recommended for its high throughput and concurrent request support.; Tags unique to VoxCPM: audio, deeplearning, minicpm, multilingual; Also covers Inference & Serving; When you need to generate high-quality, lifelike voice clones for multiple languages without the overhead of tokenizers. ### When should I choose chatterbox-tts-api over VoxCPM? Choose chatterbox-tts-api over VoxCPM when License: chatterbox-tts-api is AGPL-3.0, VoxCPM is Apache-2.0; Requirements: Requires a local setup environment that supports CUDA for optimal performance; Docker can simplify deployment.; Tags unique to chatterbox-tts-api: ai, chatgpt, chatterbox, cuda; When you need a self-hosted solution that mirrors the functionality of ElevenLabs or other proprietary TTS services and requires compatibility with existing ecosystems like Open WebUI or AnythingLLM. ### When should I avoid VoxCPM? If your project is constrained by hardware with less powerful GPUs than NVIDIA RTX 4090, as VoxCPM might not provide optimal real-time factor performance. When a simple text-to-speech solution suffices and does not require the advanced features like voice cloning or creative voice design that VoxCPM offers. ### When should I avoid chatterbox-tts-api? If you require integrations specific to ElevenLabs' proprietary voice models as Chatterbox-TTS-API, despite its capabilities, does not directly support their unique voice libraries. For users needing a fully managed service without the complexities of local deployment and maintenance, like that offered by cloud-based TTS providers. ### Is VoxCPM or chatterbox-tts-api more popular on GitHub? VoxCPM has more GitHub stars (34,452 vs 666). Stars measure visibility, not whether either tool fits your constraints. ### Are VoxCPM and chatterbox-tts-api open source? Yes - both are open-source projects on GitHub (VoxCPM: Apache-2.0, chatterbox-tts-api: AGPL-3.0). ### Where can I find alternatives to VoxCPM or chatterbox-tts-api? GraphCanon lists graph-backed alternatives at [VoxCPM alternatives](/tools/openbmb-voxcpm/alternatives) and [chatterbox-tts-api alternatives](/tools/travisvn-chatterbox-tts-api/alternatives) ([VoxCPM markdown twin](/tools/openbmb-voxcpm/alternatives.md), [chatterbox-tts-api markdown twin](/tools/travisvn-chatterbox-tts-api/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/openbmb-voxcpm-vs-travisvn-chatterbox-tts-api.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, VoxCPM or chatterbox-tts-api? VoxCPM: Active. chatterbox-tts-api: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for VoxCPM and chatterbox-tts-api? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [VoxCPM trust report](/tools/openbmb-voxcpm/trust); [chatterbox-tts-api trust report](/tools/travisvn-chatterbox-tts-api/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=openbmb-voxcpm`](/api/graphcanon/graph?tool=openbmb-voxcpm) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_