OpenAI Codex vs Gemini CLI
A side-by-side view built only from each listing. Prices change, so check the source links.
| OpenAI Codex | Gemini CLI | |
|---|---|---|
| Good at | OpenAI's coding agent in the CLI, IDE and cloud. | Open-source terminal agent from Google powered by Gemini. |
| Pricing | Free $0; Go $8/mo; Plus $20/mo; Pro from $100/mo; Business $20/user/mo Checked 2026-10-13 · source | Free and open source (you pay your own LLM API costs) Checked 2026-10-13 · source |
| Best for | terminal codingcloud agentspull request automation | terminal codingopen source |
| Setup | npm install -g @openai/codex && cd my-repo && codex | npm install -g @google/gemini-cli && gemini |
| Links | Full listing · Official site | Full listing · Official site |
Pick OpenAI Codex if…
- you want it for cloud agents, pull request automation (listed for OpenAI Codex, not Gemini CLI)
- this fits what you need: OpenAI's coding agent in the CLI, IDE and cloud
- its pricing works for you: Free $0; Go $8/mo; Plus $20/mo; Pro from $100/mo; Business $20/user/mo
Pick Gemini CLI if…
- you want it for open source (listed for Gemini CLI, not OpenAI Codex)
- this fits what you need: Open-source terminal agent from Google powered by Gemini
- its pricing works for you: Free and open source (you pay your own LLM API costs)