Launch the Gemini CLI interactive REPL (defaults to Gemini 2.5 Pro)
Launches the Gemini CLI interactive REPL. As of April 2026, the CLI defaults to Auto routing: simple prompts use gemini-3-flash-preview, complex prompts use gemini-3.1-pro-preview (if enabled). Use /model inside the session to switch models. Requires npm install -g @google/gemini-cli. Current CLI version: 0.21.1+.
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