Gemini Authentication Management

Comprehensive authentication setup and management for Gemini CLI, supporting OAuth, API keys, and Vertex AI.

Authentication Methods

1. Google OAuth (Free Tier)

Benefits:

• No API key management
• 60 requests/minute
• 1,000 requests/day
• Access to Gemini 2.5 Pro
• 1M token context window

# Initial setup
gemini
# Opens browser for Google account login