--- title: "CosyVoice vs edge-tts" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/funaudiollm-cosyvoice-vs-rany2-edge-tts" tools: ["funaudiollm-cosyvoice", "rany2-edge-tts"] --- # CosyVoice vs edge-tts *GraphCanon updated Jul 12, 2026* ## Verdict Pick CosyVoice when license: CosyVoice is Apache-2.0, edge-tts is Other; pick edge-tts when license: edge-tts is Other, CosyVoice is Apache-2.0. [CosyVoice](https://funaudiollm.github.io/cosyvoice3) reports 22k GitHub stars, 2.5k forks, and 767 open issues, last pushed May 25, 2026. [edge-tts](https://pypi.org/project/edge-tts/) has 11k stars, 1.1k forks, and 4 open issues, last pushed Mar 22, 2026. Figures are from public GitHub metadata via [CosyVoice's repository](https://github.com/FunAudioLLM/CosyVoice) and [edge-tts's repository](https://github.com/rany2/edge-tts). | | [CosyVoice](/tools/funaudiollm-cosyvoice.md) | [edge-tts](/tools/rany2-edge-tts.md) | | --- | --- | --- | | Tagline | Multi-lingual large voice generation model with full-stack abilities for inference, training and deployment. | Use Microsoft Edge's online text-to-speech service from Python WITHOUT needing Microsoft Edge or Windows or an API key | | Stars | 22,089 | 11,478 | | Forks | 2,545 | 1,056 | | Open issues | 767 | 4 | | Language | Python | Python | | Adopt for | CosyVoice is a Python-based multi-lingual large voice generation model. It supports extensive capabilities including fine-tuning, TTS (Text-To-Speech), and natural language generation. | - | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | Other | | Categories | Inference & Serving, Model Training, Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [CosyVoice](/tools/funaudiollm-cosyvoice.md) | [edge-tts](/tools/rany2-edge-tts.md) | | --- | --- | --- | | Maintenance | Steady (60%) | Slowing (36%) | | Days since push | 46d | 110d | | Open issues (now) | 767 | 4 | | Owner type | Organization | User | | Full report | [trust report](/tools/funaudiollm-cosyvoice/trust.md) | [trust report](/tools/rany2-edge-tts/trust.md) | ## Decision facts: CosyVoice - **Adopt for:** CosyVoice is a Python-based multi-lingual large voice generation model. It supports extensive capabilities including fine-tuning, TTS (Text-To-Speech), and natural language generation. ## Choose when ### Choose CosyVoice if… - License: CosyVoice is Apache-2.0, edge-tts is Other. - Tags unique to CosyVoice: audio-generation, cantonese, chatbot, chatgpt. - Also covers Inference & Serving, Model Training. - When you need support for multiple languages like Cantonese, Chinese, English, Japanese, and Korean. ### Choose edge-tts if… - License: edge-tts is Other, CosyVoice is Apache-2.0. - Tags unique to edge-tts: python, speech-synthesis, text-to-speech, tts. - Leaner open-issue backlog (4). ## When NOT to use CosyVoice - If your project specifically requires fine-tuned performance in languages not supported by CosyVoice such as Arabic or Spanish. - When strict real-time speech synthesis requirements are essential, as CosyVoice may face delays depending on the environment's computational power and model complexity. ## When NOT to use edge-tts - Last GitHub push was 111 days ago (slowing maintenance, Mar 22, 2026). Validate activity before betting a new project on edge-tts. ## Common questions ### What is the difference between CosyVoice and edge-tts? CosyVoice: Multi-lingual large voice generation model with full-stack abilities for inference, training and deployment.. edge-tts: Use Microsoft Edge's online text-to-speech service from Python WITHOUT needing Microsoft Edge or Windows or an API key. See the comparison table for live GitHub stats and shared categories. ### When should I choose CosyVoice over edge-tts? Choose CosyVoice over edge-tts when License: CosyVoice is Apache-2.0, edge-tts is Other; Tags unique to CosyVoice: audio-generation, cantonese, chatbot, chatgpt; Also covers Inference & Serving, Model Training; When you need support for multiple languages like Cantonese, Chinese, English, Japanese, and Korean. ### When should I choose edge-tts over CosyVoice? Choose edge-tts over CosyVoice when License: edge-tts is Other, CosyVoice is Apache-2.0; Tags unique to edge-tts: python, speech-synthesis, text-to-speech, tts; Leaner open-issue backlog (4). ### When should I avoid CosyVoice? If your project specifically requires fine-tuned performance in languages not supported by CosyVoice such as Arabic or Spanish. When strict real-time speech synthesis requirements are essential, as CosyVoice may face delays depending on the environment's computational power and model complexity. ### When should I avoid edge-tts? Last GitHub push was 111 days ago (slowing maintenance, Mar 22, 2026). Validate activity before betting a new project on edge-tts. ### Is CosyVoice or edge-tts more popular on GitHub? CosyVoice has more GitHub stars (22,089 vs 11,478). Stars measure visibility, not whether either tool fits your constraints. ### Are CosyVoice and edge-tts open source? Yes - both are open-source projects on GitHub (CosyVoice: Apache-2.0, edge-tts: Other). ### Where can I find alternatives to CosyVoice or edge-tts? GraphCanon lists graph-backed alternatives at [CosyVoice alternatives](/tools/funaudiollm-cosyvoice/alternatives) and [edge-tts alternatives](/tools/rany2-edge-tts/alternatives) ([CosyVoice markdown twin](/tools/funaudiollm-cosyvoice/alternatives.md), [edge-tts markdown twin](/tools/rany2-edge-tts/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/funaudiollm-cosyvoice-vs-rany2-edge-tts.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, CosyVoice or edge-tts? CosyVoice: Steady. edge-tts: 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 CosyVoice and edge-tts? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [CosyVoice trust report](/tools/funaudiollm-cosyvoice/trust); [edge-tts trust report](/tools/rany2-edge-tts/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=funaudiollm-cosyvoice`](/api/graphcanon/graph?tool=funaudiollm-cosyvoice) - 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/_