AI coding assistants
Gemini CLI: review, pricing, data and alternatives
Gemini CLI lets developers explore codebases and edit files from the terminal. It creates applications from instructions, runs tasks in scripts, and connects external tools through MCP. A free tier exists. Access and transparency score: 53/100, #23 of 31 in its category.
| Access | 15/30 | |
|---|---|---|
| Openness | 20/30 | |
| Trust | 18/40 |
What is Gemini CLI?
Gemini CLI lets developers explore codebases and edit files from the terminal. It creates applications from instructions, runs tasks in scripts, and connects external tools through MCP.
According to its documentation, Gemini CLI lets you:
- explore and explain a codebase
- edit files from the terminal
- create an application from instructions
- run tasks in scripts
- connect external tools through MCP
We file it under AI coding assistants, the category of tools to write and fix code, and it also overlaps with developer tools and aI agent builders. The category lists 31 verified tools on this site.
The publisher is Google LLC, based in United States. The service launched in 2025.
Who is it for?
It is mostly useful to these profiles: developers. The need it covers is simple to state: write and fix code.
Gemini CLI is a good candidate if:
- you want to try before paying
- you want to read the code or host it yourself
The best test is a concrete case from your daily work: if the tool does not beat your current method within a week, move on to an alternative.
How much does Gemini CLI cost?
Pricing model: open source (public code). Basic use costs nothing.
To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.
Data and privacy
The publisher does not clearly state where data is hosted. Assume your content may leave your region.
For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.
Exporting your content: Texte, JSON, JSONL et Markdown. Being able to get your data back makes switching tools easier later.
Three habits apply to every AI tool:
- turn off the use of your content for training if the option exists
- use a work account separate from your personal account
- review everything the tool produces before publishing or sending it
Platforms, languages and API
Gemini CLI runs on: Windows, macOS, and Linux.
Interface languages: English.
API availability is not documented.
The source code is public: google-geminigoogle-gemini/gemini-cli.
How we scored it
Our 53/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.
| Criterion | Points | What counts |
|---|---|---|
| Access | 15/30 | free tier, published price, French interface |
| Openness | 20/30 | API, data export, open code |
| Trust | 18/40 | identified publisher, declared hosting, age, presence in reference lists |
The full calculation is explained on our method page.
Comparison with alternatives
Gemini CLI against other tools in the aI coding assistants category:
| Tool | Free | Entry price | API | Score |
|---|---|---|---|---|
| Gemini CLI | Yes | not published | – | 53 |
| Codex | Yes | $8 per month | Yes | 90 |
| aider | Yes | not published | Yes | 78 |
| Kilo | Yes | $15 per month | Yes | 78 |
| GitHub Copilot | Yes | $10 per month | Yes | 75 |
| Amazon Q Developer | Yes | $19 per month | – | 71 |
| OpenCode | Yes | $10 per month | Yes | 71 |
| Amp | Yes | $20 per month | Yes | 70 |
Verdict
Gemini CLI publishes little verifiable information: look at the better-scored alternatives first.
Strengths
- Free tier to try it
- Public source code
Limitations
- Data hosting not disclosed
Avoid if…
- You handle sensitive personal data without a processing agreement
Alternatives
- Codexfree tier
- aiderfree tier
- Kilofree tier
- GitHub Copilotfree tier
- Amazon Q Developerfree tier
- OpenCodefree tier
Categories and jobs
Learn more
Frequently asked questions
Is Gemini CLI free?
Yes, a free plan exists, with usage limits.
Where is Gemini CLI data stored?
The publisher does not clearly say so in its public documentation.
Does Gemini CLI have an API?
It is not documented.
What are the alternatives to Gemini CLI?
In the same category: Codex, aider, Kilo, and GitHub Copilot.
Gemini CLI or Codex: which one to choose?
Our score is 53/100 for Gemini CLI and 90/100 for Codex. Try both on the same task before paying.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score