Codex CLI vs Gemini CLI
Codex CLI is listed under CLI agents, Gemini CLI under CLI agents. Shared focus: open-source, terminal. Each name links to the product's own site.
 Codex CLI |  Gemini CLI | |
|---|---|---|
| Category | CLI agents | CLI agents |
| Pricing | Open source | Open source |
| Public code | Yes | Yes |
| Tags | terminal, openai, open-source, sandbox | terminal, google, open-source, mcp |
| Website | github.com | github.com |
What Codex CLI does
Open source coding agent from OpenAI that runs in your terminal. It reads and edits files in the chosen directory and runs commands. Approval modes control what it may do without asking.
What Gemini CLI does
Open source terminal agent from Google for Gemini models. It reads code, edits files, runs shell commands and supports MCP servers. A personal Google account gets a free usage tier.
Other options
See all CLI agents, or alternatives to Codex CLI and Gemini CLI.