Gemini CLI

Google's open-source AI agent for your terminal

github.com · Free tier available; Pro $19.99/mo; Ultra $99.99/mo; Pay-as-you-go API option available

What it is

Gemini CLI brings Google's Gemini models to the terminal as an open-source coding agent, with a generous free tier tied to a personal Google account.

Why it's good for vibe coding

The free quota makes it a great zero-cost starting point for experimenting before you commit to paid tools.

Capabilities

  • Open-source terminal coding agent using Gemini models; free tier tied to a personal Google account with generous daily quota
  • Reads/edits files, runs commands, built-in Google Search grounding
  • MCP support; GitHub Actions integration
  • Pricing: free tier is the headline; paid via Gemini API keys or Google AI plans
  • Best for: zero-budget starting point; quick scripts and small apps
  • Not for: the hardest multi-step builds — quota and model quality below Claude Code on complex work