Gemini CLI and Codex CLI are Apache-2.0 terminal coding agents. Gemini CLI is centered on Google's Gemini ecosystem and includes built-in web tools, while Codex CLI is OpenAI's local Codex client with configurable approval controls.
Gemini CLI is Google's open-source terminal agent for working with Gemini models. It includes file operations, shell commands, web fetching, Google Search grounding, and MCP support.
Codex CLI is OpenAI's open-source coding agent that runs locally in a terminal. It can inspect a repository, edit files, and run commands under configurable approval controls.
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Gemini models through Google-supported access paths
OpenAI Codex model access through supported OpenAI sign-in or API-key paths
Includes Google Search grounding and web fetching
Primary built-in workflow is repository inspection, file editing, and terminal command execution
Supports MCP servers and custom extensions
Local agent behavior is controlled through configurable approval and execution settings
Apache-2.0
Apache-2.0
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