OlympHill
Jan logo

Jan开源、离线的 ChatGPT 替代方案,可在本机运行 AI 模型。

4.5 (4)
Daniel Nikulshyn审阅者 Daniel Nikulshyn·更新 2026年7月

概览

Jan 是一个开源桌面应用程序,让您可以直接在自己的电脑上运行大语言模型,提供一种私密的云端聊天机器人替代方案。它支持多种开源模型,并且在需要时还能连接远程 API,给用户灵活性且不被单一供应商锁定。 出于隐私考虑,Jan 默认将对话和数据保存在本地设备上。它跨 Windows、macOS 与 Linux,内置本地 API 服务器,开发者可以将模型集成到自己的工作流或应用中。 该项目由社区驱动,完全开源,是想要透明度、可定制性以及对 AI 助手行为拥有控制权的用户的实用选择。

主要功能

  • 本地设备 LLM 推理
  • 一键下载的模型库
  • 与 OpenAI 兼容的本地 API
  • 带会话历史的聊天界面
  • 扩展与定制支持
  • Windows、macOS 与 Linux 构建

价格

模型
Freemium
评分
4.5 / 5 (4)

使用场景

私密离线 AI 聊天

在自己的机器上与大语言模型聊天,保持敏感对话和数据不上传至云端。

本地 API 用于应用开发

使用 Jan 的兼容 OpenAI 的本地 API 服务器,将本地 LLM 集成到自定义应用、脚本或内部工作流中。

实验开源模型

通过内置库一键下载并切换多种开源模型,以比较性能和能力。

灵活的混合 AI 工作流

默认本地运行模型,必要时可连接远程 API,避免被单一 AI 供应商锁定。

优点 & 缺点

优点

  • 完全本地执行,数据保持私密
  • 免费且开源
  • 跨平台桌面应用
  • 支持多种开源模型和远程 API
  • 为开发者提供内置本地 API 服务器

缺点

  • 性能受限于本地硬件
  • 对非开发者而言设置可能较为技术化
  • 模型生态相较于专有工具更小

评测

4.5

4 个评分的平均值。

5
2
4
2
3
0
2
0
1
0

登录以留下评测。

VN

Victor Nguyen

May 23, 2026

Compared a few options

Evaluated this against two competitors. Where it wins: windows, macOS, and Linux builds and cross-platform desktop app. Where it lags: smaller model ecosystem than proprietary tools. On balance the feature set — especially chat interface with conversation history — justifies the 4 stars for our use case.

Mei-Ling Wong

Mei-Ling Wong

Jan 1, 2026

Years in this space

I've evaluated a lot of these over the years. What stands out here is on-device LLM inference — handled better than most — and built-in local API server for developers. Performance depends on local hardware is my one real gripe. Worth the time if this is your use case.

Leila Hassan

Leila Hassan

Nov 3, 2025

Does the job

Pretty happy overall. Chat interface with conversation history just works and fully local execution keeps data private. but no dealbreakers — I'd recommend it to a friend without hesitating.

WC

Wei Chen

Jul 16, 2025

Does the job

Pretty happy overall. Extensions and customization support just works and supports multiple open models and remote APIs. but no dealbreakers — I'd recommend it to a friend without hesitating.

问答

Does Jan store my data online?

No, Jan keeps conversations and data on-device by default, offering a private alternative to cloud-based chatbots.

Asked by Ethan Brooks · Jan 31, 2026

Will Jan work on my operating system?

Jan works across Windows, macOS, and Linux, making it a cross-platform desktop app.

Asked by Thandiwe Dlamini · Nov 22, 2025

Can Jan work with different models?

Jan supports a range of open models and can connect to remote APIs, including models from OpenAI, Claude, and Google.

Asked by Ismael Rios · Nov 14, 2025

Is Jan free to use?

Yes, Jan is free and open source, with over 6.1M downloads.

Asked by Giulia Conti · Oct 30, 2025

提问

微起例式分成给打成机子 (LLMs) 的替代品