Aider vs Trae
Pricing
Aider: Free (open source), you pay for API usage
Trae: Free tier, Pro from $20/mo
Description
Aider: Open-source terminal AI that edits your code and makes clean git commits automatically
Trae: AI IDE from ByteDance with a limited free plan and paid plans from $20/mo, but read the privacy fine print
Pros
- Git-aware: every change is a well-described commit you can review or revert
- Works with Claude, OpenAI and DeepSeek models, plus local models
- Maps your whole codebase and can run linters and tests after each change
- Free plan includes 5,000 autocompletions a month and Auto mode
- SOLO mode for multi-step agent tasks, plus cloud tasks in TraeWork on paid plans
- VS Code-based so the interface is familiar
Cons
- Terminal-only: no GUI, no visual diff preview
- API costs are yours to manage and can add up with large context
- Development has slowed: the latest release, v0.86.0, came out in August 2025
- Made by ByteDance: security researchers reported in 2025 that it kept sending telemetry after users opted out
- Chats and code snippets may be used for model training unless you turn on Privacy Mode while logged in
- The free plan is limited to Auto mode: choosing models needs Pro at $20/mo
Details
Aider is a terminal tool that pair-programs with you. You tell it what to change, it edits the files, and (here is the part that wins people over) it creates a clean git commit with a descriptive message. Every change is tracked, reviewable, and revertable. No other AI coding tool handles version control this naturally.
Built by Paul Gauthier, it builds a map of your whole repository so it can work on larger codebases. The tradeoff is that it is terminal-only and requires you to bring your own API key, and there is a learning curve to getting the most out of it (knowing which files to add, how to prompt). Development has also slowed: the latest release, v0.86.0, came out in August 2025, and the repository has had no new commits since May 2026, so support for newer models may lag. If you are already comfortable with git and the command line, aider fits into your workflow like a glove. If you want a visual editor experience, look at Cursor or Cline instead.
Trae is an AI IDE from ByteDance. The editor is VS Code-based, and SOLO mode can plan and carry out multi-step coding tasks. The free plan gives you Auto mode, limited usage and 5,000 autocompletions a month. Pro costs $20 a month with $20 of model usage included and unlimited autocomplete, Pro+ costs $60, and Ultra costs $200 with early access to new models.
The elephant in the room is ByteDance. In 2025 security researchers reported that Trae kept sending usage data to ByteDance servers even after users opted out of telemetry. Trae’s documentation says your codebase files are not used for training, but your chats, related code snippets and AI output may be used for analytics and model training unless you enable Privacy Mode, which only applies while you are logged in. If you are working on anything sensitive (client projects, proprietary code, anything with user data), this is a real concern. Cursor and Devin Desktop cost the same as Trae’s Pro plan.
Verified
