--- title: "OpenVoice vs chatterbox-tts-api" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/myshell-ai-openvoice-vs-travisvn-chatterbox-tts-api" tools: ["myshell-ai-openvoice", "travisvn-chatterbox-tts-api"] --- # OpenVoice vs chatterbox-tts-api *GraphCanon updated Aug 13, 2026* ## Verdict Pick OpenVoice if openVoice is an instant voice cloning tool utilizing an audio foundation model for text-to-speech and zero-shot capabilities; 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. [OpenVoice](https://research.myshell.ai/open-voice) reports 37k GitHub stars, 4.1k forks, and 307 open issues, last pushed Apr 19, 2025. [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 [OpenVoice's repository](https://github.com/myshell-ai/OpenVoice) and [chatterbox-tts-api's repository](https://github.com/travisvn/chatterbox-tts-api). | | [OpenVoice](/tools/myshell-ai-openvoice.md) | [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) | | --- | --- | --- | | Tagline | Instant voice cloning using an audio foundation model | Local OpenAI-compatible text-to-speech API using Chatterbox | | Stars | 37,044 | 666 | | Forks | 4,146 | 152 | | Open issues | 307 | 16 | | Language | Python | Python | | Adopt for | OpenVoice is an instant voice cloning tool utilizing an audio foundation model for text-to-speech and zero-shot capabilities. | 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 | Available under the MIT License, allowing free use for both commercial and research purposes. | Chatterbox-TTS-API is distributed under the AGPL-3.0 license, ensuring any modifications or derivative works must be shared openly. | | Categories | Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [OpenVoice](/tools/myshell-ai-openvoice.md) | [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) | | --- | --- | --- | | Maintenance | Dormant (18%) | Slowing (36%) | | Days since push | 465d | 232d | | Open issues (now) | 307 | 16 | | Owner type | Organization | User | | Full report | [trust report](/tools/myshell-ai-openvoice/trust.md) | [trust report](/tools/travisvn-chatterbox-tts-api/trust.md) | ## Decision facts: OpenVoice - **Pricing:** freemium - As it is open-source with a permissive MIT license, usage is free. However, users may need to incur costs for compute resources when deploying scalable solutions. - **Adopt for:** OpenVoice is an instant voice cloning tool utilizing an audio foundation model for text-to-speech and zero-shot capabilities. - **License detail:** Available under the MIT License, allowing free use for both commercial and research purposes. ## 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 OpenVoice if… - License: OpenVoice is MIT, chatterbox-tts-api is AGPL-3.0. - Pricing: As it is open-source with a permissive MIT license, usage is free. However, users may need to incur costs for compute resources when deploying scalable solutions.. - Tags unique to OpenVoice: text-to-speech, tts, voice-clone, zero-shot-tts. - When rapid deployment of clone voices is needed without extensive training examples required by other tools due to its zero-shot text-to-speech feature. ### Choose chatterbox-tts-api if… - License: chatterbox-tts-api is AGPL-3.0, OpenVoice is MIT. - 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 OpenVoice - If your project requires fine-tuning of voice characteristics beyond what the tool's audio foundation model offers, as other tools may be more customizable. - When dealing with niche linguistic requirements or extremely rare language models that might not be well-supported by OpenVoice’s broader focus. ## 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 OpenVoice and chatterbox-tts-api? OpenVoice: Instant voice cloning using an audio foundation model. 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 OpenVoice over chatterbox-tts-api? Choose OpenVoice over chatterbox-tts-api when License: OpenVoice is MIT, chatterbox-tts-api is AGPL-3.0; Pricing: As it is open-source with a permissive MIT license, usage is free. However, users may need to incur costs for compute resources when deploying scalable solutions.; Tags unique to OpenVoice: text-to-speech, tts, voice-clone, zero-shot-tts; When rapid deployment of clone voices is needed without extensive training examples required by other tools due to its zero-shot text-to-speech feature. ### When should I choose chatterbox-tts-api over OpenVoice? Choose chatterbox-tts-api over OpenVoice when License: chatterbox-tts-api is AGPL-3.0, OpenVoice is MIT; 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 OpenVoice? If your project requires fine-tuning of voice characteristics beyond what the tool's audio foundation model offers, as other tools may be more customizable. When dealing with niche linguistic requirements or extremely rare language models that might not be well-supported by OpenVoice’s broader focus. ### 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 OpenVoice or chatterbox-tts-api more popular on GitHub? OpenVoice has more GitHub stars (37,044 vs 666). Stars measure visibility, not whether either tool fits your constraints. ### Are OpenVoice and chatterbox-tts-api open source? Yes - both are open-source projects on GitHub (OpenVoice: MIT, chatterbox-tts-api: AGPL-3.0). ### Where can I find alternatives to OpenVoice or chatterbox-tts-api? GraphCanon lists graph-backed alternatives at [OpenVoice alternatives](/tools/myshell-ai-openvoice/alternatives) and [chatterbox-tts-api alternatives](/tools/travisvn-chatterbox-tts-api/alternatives) ([OpenVoice markdown twin](/tools/myshell-ai-openvoice/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/myshell-ai-openvoice-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, OpenVoice or chatterbox-tts-api? OpenVoice: Dormant. 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 OpenVoice and chatterbox-tts-api? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [OpenVoice trust report](/tools/myshell-ai-openvoice/trust); [chatterbox-tts-api trust report](/tools/travisvn-chatterbox-tts-api/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=myshell-ai-openvoice`](/api/graphcanon/graph?tool=myshell-ai-openvoice) - 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/_