Aider vs Cline
Pricing
Aider: Free (open source), you pay for API usage
| Plan | Price | Includes |
|---|---|---|
| Open source | $0 | Apache-2.0 licence; you supply your own LLM API key or run a local model |
Prices checked on the vendor's page
Cline: Free (open source), you pay for the AI API you choose
| Plan | Price | Includes |
|---|---|---|
| Open Source | $0 | VS Code extension and CLI; pay for AI inference at cost or bring your own key |
| Enterprise | Custom | Adds JetBrains extension, SSO, team management and centralized billing |
Prices checked on the vendor's page
Description
Aider: Open-source terminal AI that edits your code and makes clean git commits automatically
Cline: Open-source VS Code extension that acts as an autonomous coding agent. Bring your own AI model
Best for
Aider: Developers who code in the terminal and want an AI pair programmer that commits each change to git.
Cline: Developers who want an open-source coding agent in VS Code and choose their own AI model
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
- Use any AI model (Claude, GPT-4, Gemini, local models): you control the cost
- Can browse the web, run terminal commands, create files, and edit code autonomously
- Free and open source: no subscription, just API costs
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
- API costs are on you and can surprise you if you are not watching
- Setup takes more work than commercial alternatives: API keys, model selection, configuration
- Quality depends entirely on which AI model you pick
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.
Cline is a VS Code extension that turns your editor into an AI coding agent. Pick your AI model (Anthropic Claude, OpenAI, local models through Ollama), give it a task, and it will plan, write code, run commands, and iterate. It asks for permission before each action, so you stay in control.
The big advantage over Cursor is flexibility and transparency. You see exactly what you are paying (API costs per request), you can switch models anytime, and there is no subscription. The big disadvantage is that you have to manage all of that yourself. If you want something that just works out of the box, Cursor is easier. If you want to pick your own model and only pay for what you use, Cline is the way.
Aider verified
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