Augment Code vs Gemini CLI: Side-by-Side Comparison 2026

Augment Code is an editor extension from Augment — context-aware ai coding with deep project understanding. Gemini CLI is a CLI-based coding agent from Google — open-source ai agent for your terminal.

Augment Code

Augment Code — AI Code Assistant from Augment. Context-Aware Agent.

✓ Code completions
✓ AI chat
✓ Agentic mode
✓ Multi-file editing
✓ Test generation

Free / $20/mo · 5 plans

Gemini CLI

Open-source AI agent that runs in your terminal. Uses a ReAct loop with built-in tools for file operations, shell commands, web search, and MCP server support. Free with generous daily limits.

✓ ReAct agentic loop
✓ File operations and shell commands
✓ Web search grounding
✓ MCP server support
✓ 1M token context window

Free / $19.99/mo · 4 plans

Feature	Augment Code	Gemini CLI
Category	Extension	CLI
Starting Price	Free	Free
Model Family	Multi-model	Gemini
Terminal Commands	—	✓
Documentation	✓	—
Open Source	No	Yes (Apache 2.0)

Key Differences

Category: Augment Code is an editor extension; Gemini CLI is a CLI-based coding agent.
Starting price: Augment Code starts at $20/mo; Gemini CLI starts at $19.99/mo.
Model family: Augment Code uses Multi-model; Gemini CLI uses Gemini.
Open source: Augment Code: No. Gemini CLI: Yes (Apache 2.0).
Bring your own key: Gemini CLI supports BYOK; Augment Code does not.
Platforms: Augment Code runs on Desktop; Gemini CLI runs on Linux, Windows, macOS.
Provider: Augment Code is built by Augment; Gemini CLI is built by Google.
Capabilities: Gemini CLI has terminal commands.

Which Should You Choose?

Choose Augment Code if you want 200K token Context Engine for deep project understanding. Choose Gemini CLI if you want AI pair programming directly in your terminal. Read our full reviews to see which fits your workflow.