head to head · open source
nanobot vs CosyVoice
nanobot has 49,734 GitHub stars, 8,706 forks, 775 open issues and last shipped 3 days ago. CosyVoice has 24,234 stars, 2,767 forks, 698 open issues and last shipped 5 months ago. nanobot leads on adoption by 105% (49,734 vs 24,234 stars). nanobot is written in Python under MIT; CosyVoice is written in Python under Apache-2.0. nanobot has attracted 18% as many forks as stars, CosyVoice 11%. nanobot was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (chatbot), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| nanobot | CosyVoice | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 24K |
| License | MIT | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-10-31 | 2026-05-25 |
| Forks | ⑂ 8.7K | ⑂ 2.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nanobot if
- You weight community size — 50K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick CosyVoice if
- You want the CosyVoice feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and CosyVoice fits your workflow better
About nanobot
English 简体中文 繁體中文 Español Français Bahasa Indonesia 日本語 한국어 Русский Tiếng Việt Discord · X · WeChat / Feishu nanobot 🐈 nanobot is an ultra lightweight, open source, self hosted personal AI agent framework written in Python. It runs in a WebUI, terminal, or chat apps and combines tools, long term memory, MCP integrations, model routing, multi agent delegation, scheduled automation, and an OpenAI compatible API in a small, readable core. Start Here What can nanobot do? nanobot is a self hosted personal AI agent runtime. It can: run in a browser WebUI or terminal connect to Telegram, Discord, Slack, WeChat, Email…
read the full nanobot overview →
About CosyVoice
👉🏻 CosyVoice 👈🏻 Fun CosyVoice 3.0 : Demos; Paper; Modelscope; Huggingface; CV3 Eval CosyVoice 2.0 : Demos; Paper; Modelscope; HuggingFace CosyVoice 1.0 : Demos; Paper; Modelscope; HuggingFace Highlight🔥 Fun CosyVoice 3.0 is an advanced text to speech (TTS) system based on large language models (LLM), surpassing its predecessor (CosyVoice 2.0) in content consistency, speaker similarity, and prosody naturalness. It is designed for zero shot multilingual speech synthesis in the wild. Key Features Language Coverage : Covers 9 common languages (Chinese, English, Japanese, Korean, German, Spanish, French…
read the full CosyVoice overview →
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Frequently asked questions
Is nanobot or CosyVoice more popular?
nanobot has 49,734 GitHub stars and CosyVoice has 24,234. nanobot has the larger community by that measure.
Are nanobot and CosyVoice free?
Both are open source. nanobot is licensed under MIT and CosyVoice under Apache-2.0. Neither carries a licence fee.
What is the difference between nanobot and CosyVoice?
nanobot is written in Python and CosyVoice in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, nanobot or CosyVoice?
Choose nanobot if you want the larger community (49,734 stars) or its MIT licence terms. Choose CosyVoice if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.