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Gemini CLI
Google's open-source (Apache-2.0) terminal agent for Gemini models, an early ACP agent. Now superseded by Antigravity CLI for most users; the README says it is not optimized for Gemini 4.
github.com/google-gemini/gemini-cliMaintenance
Still releasing (v0.65.0 on 2026-10-20), but Google announced on 2026-05-19 that Gemini CLI is transitioning to the closed Antigravity CLI; free, Google AI Pro/Ultra users lost access 2026-06-18. Only paid API-key and Code Assist Standard/Enterprise users remain. Monthly commits fell from 336 (Apr 2026) to ~50 (Jul-Sep 2026). (checked 2026-10-25)
In Coding agents
Where it stands apart
- Is it actively maintained? maintenance or slowing (5% of 21 others)
- How is it mainly sustained? big company side project (10% of 21 others)
- Which shared standard or format does it mainly build on? ACP (Agent Client Protocol) (14% of 21 others)
- Whose models can you use? Pick the first that applies. one model vendor's models only (5% of 21 others)
- Does it read project instructions from AGENTS.md? no (10% of 21 others)
What it shares with most of the community
- How is the main thing licensed? permissive open source (MIT/Apache/BSD) (52% of 21 others)
- Who is it for? developers (95% of 21 others)
- How does finished work usually come back to you? edits in your local working tree while you watch (52% of 21 others)
- Where do the commands it runs execute by default? on your machine with your user's permissions (86% of 21 others)
- Can users add their own tools through MCP (Model Context Protocol) servers? yes (95% of 21 others)
- When you first set it up, how do you pay for the models it uses by default? with your own API key or local model (the tool itself is free) (52% of 21 others)
Nearest neighbors
- Kiro 53% of 17 shared answers match
- Qwen Code 53% of 17 shared answers match
- Aider 47% of 17 shared answers match
Every answer
| Question | Answer | Source |
|---|---|---|
| Is it actively maintained? | stands apart maintenance or slowing Superseded by Antigravity CLI; README: 'Gemini CLI was replaced by Antigravity CLI on June 18th, 2026' for unpaid tier and Google One users. | source 2026-10-25 |
| How is the main thing licensed? | permissive open source (MIT/Apache/BSD) Apache-2.0 | source 2026-10-25 |
| How is it mainly sustained? | stands apart big company side project | source 2026-10-25 |
| Can it run entirely on your own device or infrastructure, without the maker's servers? | partly (some features need the maker's servers) CLI is local; Gemini models are hosted by Google. | source 2026-10-25 |
| Do you need an account to use it? | account required Auth is Google sign-in, Gemini API key or Vertex; all Google accounts. | source 2026-10-26 |
| Who is it for? | developers | source 2026-10-25 |
| Which shared standard or format does it mainly build on? | stands apart ACP (Agent Client Protocol) First ACP agent (--acp); instructions live in its own GEMINI.md. | source 2026-10-26 |
| Where do you primarily use it? | terminal (CLI or TUI) | source 2026-10-25 |
| How does finished work usually come back to you? | edits in your local working tree while you watch | source 2026-10-25 |
| Whose models can you use? Pick the first that applies. | stands apart one model vendor's models only Gemini via Google login, Gemini API key, or Vertex AI. | source 2026-10-25 |
| Is pointing it at a model running on your own machine (e.g. Ollama, LM Studio) a documented setup? | no | source 2026-10-25 |
| Out of the box, does it ask you before editing files or running shell commands? | asks before edits and before commands --approval-mode defaults to 'default' (confirm tools); auto_edit and yolo are opt-in. | source 2026-10-25 |
| Where do the commands it runs execute by default? | on your machine with your user's permissions --sandbox defaults to false. | source 2026-10-25 |
| Can users add their own tools through MCP (Model Context Protocol) servers? | yes | source 2026-10-25 |
| Does it read project instructions from AGENTS.md? | stands apart no Defaults to GEMINI.md; context.fileName can be set to include AGENTS.md. | source 2026-10-25 |
| Does it use the Agent Client Protocol (ACP) for agent-editor connections? | yes, as an agent that editors can drive --acp flag (formerly --experimental-acp). | source 2026-10-25 |
| When you first set it up, how do you pay for the models it uses by default? | with your own API key or local model (the tool itself is free) After 2026-06-18, only paid Gemini API keys or Code Assist Standard/Enterprise licenses. | source 2026-10-25 |
Sources
This page was derived from:
- GitHub · github.com/google-gemini/gemini-cli · read 2026-10-25
- GitHub · raw.githubusercontent.com/google-gemini/gemini-cli/main/docs/cli/cli-reference.md · read 2026-10-25
- Web page · developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli · read 2026-10-25
- Web page · geminicli.com/docs/cli/gemini-md/ · read 2026-10-25
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