What Is Trae?Trae 是什么？
Trae (TRAE) is ByteDance's AI-native IDE at trae.ai (international) and trae.cn (China). It combines an intelligent coding assistant — AI Q&A, smart autocompletion, codebase-aware chat — with an autonomous Builder/SOLO mode that scaffolds complete projects (frontend, backend, config files) from plain-language descriptions.Trae（TRAE）是字节跳动的 AI 原生 IDE：trae.ai（国际版）与 trae.cn（中国版）。它把智能编程助手（AI 问答、智能补全、代码库感知对话）与自主式 Builder/SOLO 模式结合起来——用一句话描述项目，它就能搭出完整工程（含前端、后端、配置文件）。
On October 9, 2026, ByteDance merged TraeCode (the AI IDE) and TraeWork (the agent platform) into a single unified TRAE platform. One app now carries two modes — Agent (task planning and execution across projects) and IDE (detailed coding and debugging) — across desktop, web, and mobile. The standalone TraeWork service shut down on October 23, 2026, with chat history, profile, and credits migrating in-app.2026 年 10 月 9 日，字节跳动把 TraeCode（AI IDE）与 TraeWork（智能体平台）合并为统一的 TRAE 平台。一个 App 承载两种模式——Agent（跨项目的任务规划与执行）与 IDE（精细编码与调试）——横跨桌面、Web、移动端。独立 TraeWork 服务于 2026 年 10 月 23 日下线，聊天记录、账号与额度可通过应用内升级迁移。
Choose your edition: trae.cn (China) needs no VPN, ships built-in Doubao / DeepSeek / Kimi models, and is completely free; trae.ai (international) offers Claude / GPT / Gemini-class models with free and paid Pro tiers. Free-tier usage on the international edition is a one-time allowance that does not reset monthly — treat it as a trial. Confirm current quotas and prices on the official site.版本怎么选：trae.cn（中国版）无需翻墙，内置豆包/DeepSeek/Kimi 等模型，完全免费；trae.ai（国际版）提供 Claude/GPT/Gemini 级模型，分免费与付费 Pro 档。注意国际版免费额度是一次性发放、每月不重置，把它当试用。最新额度与价格以官网为准。
Trae is ByteDance's bid to own the "AI pair programmer for everyone" lane: genuinely zero-barrier for Chinese users (free, local models, no VPN) and a surprisingly complete Builder mode for scaffolding. The October 2026 merger into a unified Agent+IDE app is the right call — but until the dust settles, watch for migration rough edges. Its honest weakness is the same as every free-tier IDE: quota anxiety. If you live in China and want a free daily driver, trae.cn is the best value in the category; if you need Claude/GPT-class models, the international edition is a credible Cursor alternative.
Trae 是字节跳动对"人人可用的 AI 结对程序员"这条赛道的下注：对中国用户几乎零门槛（免费、内置国产模型、无需翻墙），Builder 模式搭项目的完整度也出人意料。2026 年 10 月合并成统一的 Agent+IDE 应用是正确方向——但合并初期注意迁移的小坑。它真实的弱点和所有免费档 IDE 一样：额度焦虑。如果你在中国、想要一款免费主力 IDE，trae.cn 是这个品类性价比之王；如果你需要 Claude/GPT 级模型，国际版是 Cursor 的靠谱替代。
— 中国吧 AI Tools Hub Editorial Team
Who Should Use Trae?谁适合使用Trae？
✓ Good Fit For适合以下场景
- Chinese developers who want a free, no-VPN AI IDE with local models想要免费、无需翻墙、内置国产模型的中国开发者
- Students and indie hackers vibe-coding MVPs and prototypes用 vibe coding 做 MVP 和原型的学生与独立开发者
- VS Code users who want familiar shortcuts with agentic upgrades熟悉 VS Code 快捷键、想无缝升级到智能体模式的用户
✕ Not Ideal For不适合以下场景
- Teams needing SSO, audit logs, and enterprise compliance controls需要 SSO、审计日志、企业合规管控的团队
- Work with confidential codebases (telemetry has no local-only mode)处理涉密代码（遥测数据不可关闭、无本地模式）
Getting Started with TraeTrae 快速开始
1. Download from trae.ai (international) or trae.cn (China) — Windows / macOS / web / mobile从 trae.ai（国际）或 trae.cn（国内）下载——支持 Windows / macOS / 网页 / 移动端2. Sign in, then import your VS Code settings, extensions, and keybindings登录后，一键导入 VS Code 的设置、插件和快捷键3. Try Builder mode: describe the project in plain language and watch it scaffold试试 Builder 模式：用一句话描述项目，看它自动搭好工程Key Features核心功能
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Agent Mode (Post-Oct-2026)Agent 模式（2026-10 合并后） — Plan and execute tasks across projects from one surface — the merged TraeWork capability inside the unified TRAE app.在一个界面里跨项目规划、执行任务——合并后的 TraeWork 能力内嵌进统一 TRAE 应用。
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IDE Mode with Builder带 Builder 的 IDE 模式 — A full VS Code-compatible editor plus Builder mode that scaffolds complete projects from natural-language prompts.完整的 VS Code 兼容编辑器，叠加 Builder 模式——自然语言描述即生成完整工程。
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Multi-Model Support多模型支持 — trae.cn: Doubao / DeepSeek / Kimi built in, no VPN needed; trae.ai: Claude / GPT / Gemini-class models; custom providers via Volcengine Ark.trae.cn 内置豆包/DeepSeek/Kimi、无需翻墙；trae.ai 提供 Claude/GPT/Gemini 级模型；还可经火山引擎 Ark 接自定义模型。
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Smart Completion & Codebase Chat智能补全与代码库对话 — Context-aware code completion plus chat that understands your whole codebase — ask, refactor, generate tests inline.上下文感知的代码补全，加上懂整个代码库的对话——提问、重构、生成测试一气呵成。
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Open-Source trae-agent Framework开源 trae-agent 框架 — bytedance/trae-agent on GitHub: a multi-LLM software-engineering agent with file editing, bash execution, and MCP-friendly tooling.GitHub 上的 bytedance/trae-agent：多 LLM 软件工程智能体，带文件编辑、bash 执行与 MCP 友好工具链。
Pros & Cons优缺点
✓ Good Fit For适合以下场景
- Free for Chinese users with strong local models built in (trae.cn)中国用户全免费，内置强力国产模型（trae.cn）
- Unified Agent + IDE in one app after the Oct 2026 merger2026-10 合并后，一个 App 搞定 Agent + IDE
- Familiar VS Code experience — settings import in minutes熟悉的 VS Code 体验，几分钟导入全部配置
- Companion open-source agent framework (trae-agent) for DIY workflows配套开源智能体框架（trae-agent），可自己搭工作流
✕ Not Ideal For不适合以下场景
- Free-tier allowance is one-time, not monthly — quota anxiety on the intl edition国际版免费额度一次性、不按月重置，额度焦虑
- Telemetry shared with ByteDance affiliates; no opt-out or local-only mode遥测数据与字节系公司共享，不可关闭、无纯本地模式
- Post-merger migration (Oct 2026) may have rough edges for TraeWork users2026-10 合并迁移初期，TraeWork 老用户可能遇到小坑
Use Cases应用场景
Popular ways people use Trae.人们使用Trae的常见场景：
🚀 MVP ScaffoldingMVP 快速搭架
Describe a SaaS idea in Builder mode and get a runnable project skeleton in minutes.在 Builder 模式描述一个 SaaS 想法，几分钟拿到可运行的项目骨架。
🎓 Learning to Code with AI跟着 AI 学编程
Students use codebase chat to understand unfamiliar repos and generate practice projects.学生用代码库对话读懂陌生仓库，生成练习项目边做边学。
🔧 Refactors & Test Generation重构与测试生成
Point the AI at legacy modules for refactors, then have it write the missing tests.让 AI 对着老模块重构，再顺手补齐缺失的测试。
🌐 Cross-Device Task Handoff跨设备任务接力
Start a task on desktop Agent mode, check progress or add instructions from your phone.桌面端 Agent 模式开任务，手机上看进度、追加指令。
Similar AI Tools相似 AI 工具
If Trae doesn't fit your needs, here are other popular AI tools you might consider:如果Trae不符合你的需求，可以看看这些热门 AI 工具：