# gemini > Launch an interactive prompt with Gemini AI. > More information: . - Start a REPL session to chat interactively: `gemini` - Send the output of another command to Gemini and exit immediately: `{{echo "Summarize the history of Rome"}} | gemini {{[-p|--prompt]}}` - Override the default model (default: gemini-2.5-pro): `gemini {{[-m|--model]}} {{gemini-2.5-flash}}` - Run inside a sandbox container: `gemini {{[-s|--sandbox]}}` - Execute a prompt then stay in interactive mode: `gemini {{[-i|--prompt-interactive]}} "{{Give me an example of recursion in Python}}"` - Include all files in context: `gemini {{[-a|--all-files]}}` - Show memory usage in status bar: `gemini --show-memory-usage`