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Mel vs Aider
By Lalla Asmaa Alaoui, founder of Mel · Updated
Aider is an open source (Apache 2.0) AI pair programmer that edits code in your git repo from the terminal, with almost any model. Mel is a terminal app where a team of agents takes on whole tasks.
Aider is a well-known open source tool for the command line, popular with developers who like a focused workflow built around their git repo. You install it with Python, open it in your repo, and pair with a model of your choice. Mel is a different shape: the terminal itself, with a team of agents that takes on whole tasks.
The short version
- Choose Aider if you want a lean, open source pair programmer in the terminal you already use, with nearly any model including ones you host yourself.
- Choose Mel if you want an agentic terminal app with a team of agents that plans, builds, tests and ships, hosted credits and team billing, and help beyond code.
How Mel does it
- Whole tasks, not pairing. A team of agents plans, builds, tests and ships while you review.
- No Python install. Mel is a desktop app for Mac, Windows and Linux.
- Aider still fits. Run it inside Mel's terminal when you want to pair.
- Hosted credits on Pro and Max if you would rather not manage keys.
Side by side
| Aider | Mel | |
|---|---|---|
| What it is | Open source AI pair programmer for the terminal | Agentic terminal app with a team of agents |
| Open source | Yes (Apache 2.0) | Coming soon |
| Models | Connects to almost any LLM, including self-hosted models | Claude, GPT, Gemini, DeepSeek, Qwen |
| Install | Python: pip install aider-install, then aider-install | Desktop app for Mac, Windows, Linux |
| How you start | Run aider in your repo with a model and API key | Open Mel as your terminal |
| Style | Pairing: you and one model, in your git repo | A team of agents on one task, with configurable approvals |
| Mel's paid plans | n/a | Pro $20/month or Max $200/month with hosted credits; Business $50 a seat |
| Editor | Runs in your terminal | VS Code extension |
| Beyond code | Coding focus | Research, PDFs, photos and files too |
Where Aider is stronger
- Open source now, under Apache 2.0.
- Model freedom, including models you run yourself.
- Lightweight. It runs inside the terminal you already have.
- A clear pairing style that keeps you close to every change.
Where Mel is stronger
- A team of agents. Planning, building and testing are split, so big jobs stay reviewable.
- Configurable approvals keep you in control of commands and edits.
- No Python setup. A desktop app on Mac, Windows and Linux.
- Hosted credits if you would rather not manage keys, and Mel Business with shared credits and one invoice for a team.
- Beyond code: research, PDFs, photos and files.
Which to pick
Aider suits developers who want to stay hands-on, pairing with a model change by change, and who value open source. Mel suits people who want to hand over a whole task to a team of agents and review the result, in a terminal app that also does non-code work. They can coexist: Aider is a command-line program, so it runs inside Mel's terminal too.
A fair test: pick one task with a clear finish line, such as "add input validation to this endpoint and make the tests pass", and run it in each. Note which one finished, which ran the tests, and which change you could review faster.
FAQ
Is Aider free? Aider is open source and free; you pay your model provider for usage.
Is Mel free? Yes, with your own API key on Mac, Windows and Linux.
Which models does each support? Aider can connect to almost any LLM. Mel works with Claude, GPT, Gemini, DeepSeek and Qwen.
Can I run Aider inside Mel? Mel is a terminal, so you can run command-line tools like Aider in it.
Is Mel open source like Aider? Not yet. Mel open source is coming soon.
Sources
Facts checked on Oct 24, 2026.
- Aider home (install, models): https://aider.chat/
- Aider FAQ (license): https://aider.chat/docs/faq.html
- Repository: https://github.com/Aider-AI/aider
- License file: https://github.com/Aider-AI/aider/blob/main/LICENSE.txt
Aider is a trademark of its owner. Mel is not affiliated with or endorsed by Aider or its authors.
Mel – the agentic terminal · openmel.dev. A multi-agent, multi-model AI terminal for Mac, Windows, Linux and VS Code. Free with your own API key.
Lalla is a hands-on tech founder, agentic infrastructure architect and the vision behind Mel.
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