#19 of 21 · 7.7/10 editorialCoding AgentOpen Source51% community win rate

Gemini CLI Review 2026: Ratings, Pros & Cons, Alternatives

Name: Gemini CLI Review 2026
Item: Gemini CLI
Rating: 7.7
Author: Standard Compute

Gemini CLI is Google's open-source (Apache 2.0) AI agent for the terminal, with a 1M-token context window that can hold entire codebases, MCP servers, Google Search grounding, and shell command execution in an agentic loop. It is no longer free: on June 18, 2026 Google stopped serving Gemini CLI to free accounts and to Google AI Pro and Ultra subscribers, and replaced it for those users with Antigravity CLI. Gemini CLI itself is still maintained and now runs on a Gemini Code Assist Standard or Enterprise licence or a paid Gemini API key.

Visit Gemini CLI →Pricing: Paid Code Assist licence or Gemini API key (free tier ended June 2026)Updated 2026-10-16

Standard Compute and Gemini CLI

Gemini CLI uses the models and billing its vendor provides; there is no Standard Compute setup for it. Agents with a custom API setting, such as OpenCode, Cline or Codex CLI, can use Standard Compute, where each step goes to the cheapest model that can do it, on providers we vet for price, uptime and speed.

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How Gemini CLI Scores

Output Quality

8.0/1054% votes

Autonomy

7.5/1033% votes

Reliability

7.5/10

Speed

8.5/10

Value

7.0/10

Ease of Use

7.5/10

Bars show editorial scores from hands-on testing. Percentages showGemini CLI's live community win rate in head-to-head votes, shown once a category has 10 or more votes.

Gemini CLI Pros, Cons, and Known Issues

Pros

1M-token context window holds entire codebases in a single session
Open source (Apache 2.0) and still actively released
MCP support plus built-in Google Search grounding
Fast responses on the flash-tier models
Enterprise data controls through Gemini Code Assist Standard and Enterprise

Cons

No longer free: since June 18, 2026 it needs a paid Code Assist licence or a paid Gemini API key
Google AI Pro and Ultra subscriptions no longer cover it; those users were moved to Antigravity CLI
Output quality on complex edits typically lands a notch below Claude Code and Codex

Known issues users report

Older guides and the GitHub README still advertise a free 1,000-requests-a-day tier that Google switched off on June 18, 2026
Can get stuck in tool-call loops on long agentic sessions
Google's terminal-agent line-up changed fast in 2026, so check which product your plan actually covers

Key Features

1M-token context window

Paid Code Assist licence or Gemini API key

MCP server support

Google Search grounding

Shell command execution

Open source (Apache 2.0)

Runs on: macOS · Linux · Windows (terminal)|Best for: Teams on Gemini Code Assist or the paid Gemini API who want an open-source terminal agent with huge context

Every agent on this page runs on Standard Compute

Standard Compute

Current frontier models Claude Fable 5.1 · GPT-6 Astra

More intelligence
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Compliance: Opt-in rules keep a company, team or key on European or US providers
Privacy: We don’t train on your prompts or store them

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Gemini CLI: Frequently Asked Questions

Is Gemini CLI free?

Not any more. On June 18, 2026 Google stopped serving Gemini CLI to free accounts and to Google AI Pro and Ultra subscribers, and moved them to Antigravity CLI, which has a free Individual plan with weekly limits. Gemini CLI itself is still open source and maintained, and now runs on a Gemini Code Assist Standard or Enterprise licence or a paid Gemini API key.

What is Gemini CLI best at?

Huge-context work: exploring or summarizing large codebases with its 1M-token window, inside an open-source terminal agent your team can audit. It suits organizations already paying for Gemini Code Assist or the Gemini API.

What replaced the free Gemini CLI?

Antigravity CLI, part of Google Antigravity. Google announced the switch on May 19, 2026 and made it on June 18. Antigravity's Individual plan is free with weekly rate limits Google doesn't put numbers on; Google AI Pro and Ultra raise them.

Can Gemini CLI use an OpenAI-compatible API or my own gateway?

No. Gemini CLI only speaks Google's Gemini API: GOOGLE_GEMINI_BASE_URL can point it at a proxy, but that proxy has to answer in the Gemini format, and Google closed the request for OpenAI-compatible endpoints (issue #23385) without adding them. Qwen Code, which began as a Gemini CLI fork, does take OpenAI- and Anthropic-compatible providers, so it is the closest drop-in if you want Claude, GPT or open models in the same kind of terminal agent.