Gemini CLI vs Aider vs OpenCode

Side by side, as alternatives to Claude Code. Rows that differ are highlighted; the strongest value in a row is marked. Unknown means no source yet.

Gemini CLIgoogle-gemini/gemini-cli

AiderAider-AI/aider

OpenCodeanomalyco/opencode

Claude Codepaid product

Cost and coverage

Price

$0 software; you run it

Included with Claude Pro ($20/month, or $17/month billed annually), Max (from $100/month), Team and Enterprise; not on the free plan source ↗

Edit code across a repo from the terminal with an AI agent

Partly

Yes

Run commands and tests

Partly

Yes

Use the agent inside VS Code or JetBrains

Partly

Yes

Connect tools and data through MCP

Partly

Yes

Write commits and pull requests

Partly

Yes

Run the agent headless in scripts or CI (GitHub Actions)

Partly

Yes

Jobs covered

5 of 6 jobs

4 of 6 jobs

5 of 6 jobs

All 6

Popularity and activity (from GitHub)

Stars

107,492

49,688

219,699Top

—

Gain this week

Unknown

—

Signal

Building history

—

Commits / 4 wk

986Top

—

Latest release

v0.65.0 · 2026-10-20Top

v0.86.0 · 2025-08-09

v1.19.3 · 2026-10-16

—

Commits / 12 wk

194

2,164

—

People committing / 12 mo

82+

12+

420+

—

Issues opened / closed, 30 days

123 / 206

107 / 75

3742 / 4694

—

Facts, with sources on each project page

Runs on my machine?Differs

Yes, the CLI runs in your terminal; the Gemini models themselves run on Google's servers

Yes, a command-line tool that runs in your project folder on your computer

Yes, CLI and desktop app

Hosted by the vendor

Code licenceDiffers

Apache-2.0

MIT

—

Model weights licenceDiffers

No separate model weights

No single bundled model licence. OpenCode connects to models/providers; their individual terms apply.

—

Commercial useDiffers

Allowed under Apache-2.0

Yes, MIT code

—

Paid services needed?Differs

A paid service is required since June 18, 2026; the free Google-account tier moved to Antigravity CLI. No local model support

Not required with local models (Ollama, LM Studio); cloud model APIs (Anthropic, OpenAI, DeepSeek and others) are optional

Needs a model provider: local models via Ollama, LM Studio or llama.cpp, or a paid API

Subscription

HardwareDiffers

4GB+ RAM for short sessions, 16GB+ for large codebases; needs Node.js 20+ and an internet connection

Not documented; the installer only needs Python

No hardware requirements documented in the README or docs (checked 2026-10-21)

—

Operating systemsDiffers

Windows 11 24H2+, macOS 15+ and Ubuntu 20.04+

Windows, macOS and Linux, with one-line installers for each

Windows, macOS and Linux; on Windows the docs recommend WSL for the CLI, and there is a Windows desktop app

—

Setup effortDiffers

Easy; run with npx or install with npm, Homebrew or MacPorts, then sign in or set an API key

Easy; one-line installer (or pip/uv/pipx), then add an API key or point it at a local model

Easy; one-line install script, npm, Homebrew, Chocolatey or Scoop, then add a model provider

—

Stars over time

Switch to Growth % to compare projects of different sizes fairly.

Gemini CLI
Aider
OpenCode

Focus a point, use arrow keys, or tap for its value.

Tracked daily since 19 Oct 2026. Dashed history: estimated from public records of when people starred the repo. Lines connect observations only; gaps contain no measured points.

Growth % starts at each project's first observed point in the shown range. Zero-star starts are unavailable.

Notes for a video or post

A plain summary with today's date and a link to the sources. Check each project page before you publish.

Gemini CLI vs Aider vs OpenCode (as alternatives to Claude Code)
Figures from RepoQuarry, 22 Oct 2026. Sources: https://repoquarry.dev/compare?ids=gemini-cli,aider,opencode&product=claude-code

Claude Code: Included with Claude Pro ($20/month, or $17/month billed annually), Max (from $100/month), Team and Enterprise; not on the free plan
Gemini CLI: free software; does 5 of 6 Claude Code jobs
Aider: free software; does 4 of 6 Claude Code jobs
OpenCode: free software; does 5 of 6 Claude Code jobs

- Gemini CLI: 107,492 GitHub stars, 194 commits in 12 weeks, licence Apache-2.0
- Aider: 49,688 GitHub stars, 0 commits in 12 weeks, licence Apache-2.0
- OpenCode: 219,699 GitHub stars, 2,164 commits in 12 weeks, licence MIT

Where they differ:
- Runs on my machine?: Gemini CLI Yes, the CLI runs in your terminal; the Gemini models themselves run on Google's servers; Aider Yes, a command-line tool that runs in your project folder on your computer; OpenCode Yes, CLI and desktop app
- Code licence: Gemini CLI Apache-2.0; Aider Apache-2.0; OpenCode MIT
- Model weights licence: Gemini CLI No separate model weights; Aider No separate model weights; OpenCode No single bundled model licence. OpenCode connects to models/providers; their individual terms apply.
- Commercial use: Gemini CLI Allowed under Apache-2.0; Aider Allowed under Apache-2.0; OpenCode Yes, MIT code
- Paid services needed?: Gemini CLI A paid service is required since June 18, 2026; the free Google-account tier moved to Antigravity CLI. No local model support; Aider Not required with local models (Ollama, LM Studio); cloud model APIs (Anthropic, OpenAI, DeepSeek and others) are optional; OpenCode Needs a model provider: local models via Ollama, LM Studio or llama.cpp, or a paid API
- Hardware: Gemini CLI 4GB+ RAM for short sessions, 16GB+ for large codebases; needs Node.js 20+ and an internet connection; Aider Not documented; the installer only needs Python; OpenCode No hardware requirements documented in the README or docs (checked 2026-10-21)
- Operating systems: Gemini CLI Windows 11 24H2+, macOS 15+ and Ubuntu 20.04+; Aider Windows, macOS and Linux, with one-line installers for each; OpenCode Windows, macOS and Linux; on Windows the docs recommend WSL for the CLI, and there is a Windows desktop app
- Setup effort: Gemini CLI Easy; run with npx or install with npm, Homebrew or MacPorts, then sign in or set an API key; Aider Easy; one-line installer (or pip/uv/pipx), then add an API key or point it at a local model; OpenCode Easy; one-line install script, npm, Homebrew, Chocolatey or Scoop, then add a model provider

Stars show popularity, not quality. Check each project page before publishing.

Want share images and a ready video description? Open a project's creator kit.

Numbers: GitHub, fetched nightly. Facts: read from each project's own documentation, with the source on its page. How we check. google-gemini/gemini-cli ↗Aider-AI/aider ↗anomalyco/opencode ↗

Gemini CLI vs Aider vs OpenCode

Stars over time

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