Gemini

Gemini brand colours

Extracted from the artwork and ranked by how much of the mark each covers, not from a brand book, so treat them as observed rather than official.

Gemini CLI is Google's open-source terminal agent, notable mainly for a free tier that a personal Google account unlocks with no card, the cheapest credible way to run an agent daily. It supports MCP, custom slash commands defined in TOML, checkpointing via /restore, and optional Docker or Seatbelt sandboxing. The official GitHub Action is how it reaches pull requests; the CLI itself stops at your working tree.