--- title: "openai_tts vs chatterbox-tts-api" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/sfortis-openai-tts-vs-travisvn-chatterbox-tts-api" tools: ["sfortis-openai-tts", "travisvn-chatterbox-tts-api"] --- # openai_tts vs chatterbox-tts-api *GraphCanon updated Sep 20, 2026* ## Verdict Pick openai_tts if a Python-based Home Assistant TTS component that leverages the OpenAI speech engine with extras like chimes and normalization; 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. [openai_tts](https://github.com/sfortis/openai_tts) reports 216 GitHub stars, 53 forks, and 12 open issues, last pushed Sep 19, 2026. [chatterbox-tts-api](https://chatterboxtts.com) has 681 stars, 154 forks, and 16 open issues, last pushed Dec 23, 2025. Figures are from public GitHub metadata via [openai_tts's repository](https://github.com/sfortis/openai_tts) and [chatterbox-tts-api's repository](https://github.com/travisvn/chatterbox-tts-api). | | [openai_tts](/tools/sfortis-openai-tts.md) | [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) | | --- | --- | --- | | Tagline | Custom TTS component for Home Assistant with OpenAI speech engine integration | Local OpenAI-compatible text-to-speech API using Chatterbox | | Stars | 216 | 681 | | Forks | 53 | 154 | | Open issues | 12 | 16 | | Language | Python | Python | | Adopt for | A Python-based Home Assistant TTS component that leverages the OpenAI speech engine with extras like chimes and normalization | 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 | GPL-3.0 | 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._ | | [openai_tts](/tools/sfortis-openai-tts.md) | [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Slowing (36%) | | Days since push | 0d | 271d | | Open issues (now) | 12 | 16 | | Stars delta | +11 (30d) | +15 (30d) | | Open issues delta | +3 (30d) | 0 (30d) | | Full report | [trust report](/tools/sfortis-openai-tts/trust.md) | [trust report](/tools/travisvn-chatterbox-tts-api/trust.md) | ## Decision facts: openai_tts - **Adopt for:** A Python-based Home Assistant TTS component that leverages the OpenAI speech engine with extras like chimes and normalization ## 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 openai_tts if… - License: openai_tts is GPL-3.0, chatterbox-tts-api is AGPL-3.0. - Tags unique to openai_tts: chime, ha, hacs, home-assistant. - When you require integration with the Home Assistant ecosystem that includes high-quality text-to-speech from OpenAI ### Choose chatterbox-tts-api if… - License: chatterbox-tts-api is AGPL-3.0, openai_tts is GPL-3.0. - Requirements: Requires a local setup environment that supports CUDA for optimal performance; Docker can simplify deployment.. - Tags unique to chatterbox-tts-api: chatgpt, chatterbox, cuda, docker. - 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 openai_tts - Avoid if your deployment environment does not support Python, essential for this TTS component's operation - Not fit when looking for pre-built integrations without Home Assistant, since it specifically caters to the Home Assistant platform ## 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 openai_tts and chatterbox-tts-api? openai_tts: Custom TTS component for Home Assistant with OpenAI speech engine integration. 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 openai_tts over chatterbox-tts-api? Choose openai_tts over chatterbox-tts-api when License: openai_tts is GPL-3.0, chatterbox-tts-api is AGPL-3.0; Tags unique to openai_tts: chime, ha, hacs, home-assistant; When you require integration with the Home Assistant ecosystem that includes high-quality text-to-speech from OpenAI. ### When should I choose chatterbox-tts-api over openai_tts? Choose chatterbox-tts-api over openai_tts when License: chatterbox-tts-api is AGPL-3.0, openai_tts is GPL-3.0; Requirements: Requires a local setup environment that supports CUDA for optimal performance; Docker can simplify deployment.; Tags unique to chatterbox-tts-api: chatgpt, chatterbox, cuda, docker; 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 openai_tts? Avoid if your deployment environment does not support Python, essential for this TTS component's operation Not fit when looking for pre-built integrations without Home Assistant, since it specifically caters to the Home Assistant platform ### 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 openai_tts or chatterbox-tts-api more popular on GitHub? chatterbox-tts-api has more GitHub stars (681 vs 216). Stars measure visibility, not whether either tool fits your constraints. ### Are openai_tts and chatterbox-tts-api open source? Yes - both are open-source projects on GitHub (openai_tts: GPL-3.0, chatterbox-tts-api: AGPL-3.0). ### Where can I find alternatives to openai_tts or chatterbox-tts-api? GraphCanon lists graph-backed alternatives at [openai_tts alternatives](/tools/sfortis-openai-tts/alternatives) and [chatterbox-tts-api alternatives](/tools/travisvn-chatterbox-tts-api/alternatives) ([openai_tts markdown twin](/tools/sfortis-openai-tts/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/sfortis-openai-tts-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, openai_tts or chatterbox-tts-api? openai_tts: Very 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 openai_tts and chatterbox-tts-api? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [openai_tts trust report](/tools/sfortis-openai-tts/trust); [chatterbox-tts-api trust report](/tools/travisvn-chatterbox-tts-api/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=sfortis-openai-tts`](/api/graphcanon/graph?tool=sfortis-openai-tts) - 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/_