kitio.aiAider vs Gemini CLI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Aider is completely free, while Gemini CLI is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Repository map
- Automatic git commits
- Architect mode
- Voice coding
- Any LLM provider
- Terminal coding agent
- Large codebase editing
- Apps from images or PDFs
- Extensions
- API key or Vertex AI sign-in
| Feature | Aider | Gemini CLI |
|---|---|---|
| Best for | Open-source AI pair programming in your terminal | Google's open-source terminal agent powered by Gemini models |
| Category | Coding | Coding |
| Pricing model | Free | Freemium |
| Starting price | Free | See pricing page |
| Free plan | Yes, fully free | Yes |
| Made by | Paul Gauthier | |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Aider is completely free, while Gemini CLI is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Aider
- Completely free and open source
- Clean git history of AI edits
- Works with almost any model
- Few new features since 2025
- Terminal-only workflow
Gemini CLI
- Open source
- Free daily quota with an API key
- Extension system
- Replaced by Antigravity CLI for free Google accounts
- Not tuned for the newest Gemini 4 models
- Daily request caps on free tiers
Which one should you choose?
Choose Aider if you want:
- Completely free and open source
- Clean git history of AI edits
- Works with almost any model
Watch out: few new features since 2025.
Choose Gemini CLI if you want:
- Open source
- Free daily quota with an API key
- Extension system
Watch out: replaced by antigravity cli for free google accounts.
Aider vs Gemini CLI FAQ
What is the difference between Aider and Gemini CLI?
Aider: Open-source AI pair programming in your terminal. Gemini CLI: Google's open-source terminal agent powered by Gemini models. Both are coding tools.
Is Aider or Gemini CLI cheaper?
Aider is completely free, while Gemini CLI is freemium.
Do Aider and Gemini CLI have free plans?
Aider: Yes, fully free. Gemini CLI: Yes.
Who makes Aider?
Aider is made by Paul Gauthier, based in United States.
Who makes Gemini CLI?
Gemini CLI is made by Google, based in United States.
Which should I choose, Aider or Gemini CLI?
Choose Aider if you value completely free and open source and clean git history of ai edits. Choose Gemini CLI if you value open source and free daily quota with an api key.