Happy vs Open Assistant API
Side-by-side comparison of two AI agent tools
Short answer
- Open Assistant API has had no commit in 21 months; Happy is actively maintained (317 commits in the last 90 days).
- Happy is growing faster: +1,201 GitHub stars in the last 30 days vs +1 for Open Assistant API.
- Pick Happy for: mobile and Web client for Codex and Claude Code, with realtime voice, encryption and fully featured. Pick Open Assistant API for: open-source, self-hosted AI assistant API compatible with OpenAI and supporting LLMs, RAG, and tools.
From GitHub data refreshed daily.
Happyopen-source
Mobile and Web client for Codex and Claude Code, with realtime voice, encryption and fully featured
Open Assistant APIopen-source
Open-source, self-hosted AI assistant API compatible with OpenAI and supporting LLMs, RAG, and tools
Metrics
| Happy | Open Assistant API | |
|---|---|---|
| Stars | 24.0k | 367 |
| Star velocity /mo | 1.2k | 1.2698412698412698 |
| Commits (90d) | 317 | 0 |
| Releases (6m) | 10 | 0 |
| Overall score | 0.8445288718080488 | 0.16821735975036525 |
Pros
- +提供完整的移动端访问能力，支持 iOS、Android 和 Web 平台
- +端到端加密保护代码安全，开源架构支持代码审计
- +无缝设备切换体验，一键在手机和桌面间转换控制权
- +开源自托管，提供完全的数据控制和隐私保护
- +通过 One API 集成支持更多 LLM 模型，不局限于 GPT
- +内置互联网搜索功能和 R2R RAG 引擎支持
Cons
- -需要安装额外的 CLI 包装器，增加了系统复杂度
- -依赖网络连接进行远程通信，可能受网络状况影响
- -作为第三方工具，需要额外的配置和维护工作
- -代码解释器功能仍在开发中，不如 OpenAI 成熟
- -需要自行部署和维护，增加运维成本
- -需要一定的技术专业知识进行配置和部署
Use Cases
- •外出时通过手机监控长时间运行的 AI 编程任务
- •在多设备间灵活切换，随时随地查看代码生成进度
- •团队协作场景下的远程代码审查和实时监控
- •构建需要多种 LLM 模型支持的 AI 应用程序
- •开发需要互联网搜索能力的智能助手
- •企业级自托管 AI 助手解决方案部署
FAQ
- Which is more popular, Happy or Open Assistant API?
- Happy has more GitHub stars (23,980 vs 367).
- Which is more actively developed, Happy or Open Assistant API?
- Happy had more commits in the last 90 days (317 vs 0).
- Should I use Happy or Open Assistant API?
- Compare their capabilities, limitations and "best for" notes above. Both are open source, so trying each on a small task is the fastest way to decide.