Gemini CLI vs OpenAI Codex
A side-by-side comparison to help you choose the right tool.
| Feature | Gemini CLI | OpenAI Codex |
|---|---|---|
| Our score | 86 | 86 |
| Pricing | Free access is available through Gemini Code Assist for individuals, with higher quotas and enterprise options in paid tiers. | Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews. |
| Free plan | Yes | Yes |
| Best for | Developers who want a terminal-first coding agent, Teams already using Gemini Code Assist or Google Cloud, Engineers who like MCP-enabled local workflows | Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem |
| Platforms | mac, windows, linux | web, mac, windows, linux, api |
| API | Yes | Yes |
| Languages | en | en |
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| Visit site | Visit site |
- Pricing
- Free access is available through Gemini Code Assist for individuals, with higher quotas and enterprise options in paid tiers.
- Free plan
- Yes
- Best for
- Developers who want a terminal-first coding agent, Teams already using Gemini Code Assist or Google Cloud, Engineers who like MCP-enabled local workflows
- Platforms
- mac, windows, linux
- API
- Yes
- Languages
- en
- Pricing
- Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews.
- Free plan
- Yes
- Best for
- Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem
- Platforms
- web, mac, windows, linux, api
- API
- Yes
- Languages
- en
86Choose Gemini CLI if:
- You are Developers who want a terminal-first coding agent
- You are Teams already using Gemini Code Assist or Google Cloud
- You are Engineers who like MCP-enabled local workflows
- You want to start free
86Choose OpenAI Codex if:
- You are Developers who want AI to work more directly on real code tasks
- You are Teams exploring terminal-first coding agents
- You are Engineers already invested in OpenAI's ecosystem
- You want to start free
FAQ
- What is the difference between Gemini CLI and OpenAI Codex?
- Gemini CLI is google's open-source terminal agent for gemini-powered coding and task execution, with built-in tools and mcp server support. OpenAI Codex is openai's coding agent experience for writing, editing, understanding, and operating on codebases with a more agentic workflow.
- Which is cheaper, Gemini CLI or OpenAI Codex?
- Gemini CLI: Free access is available through Gemini Code Assist for individuals, with higher quotas and enterprise options in paid tiers.. OpenAI Codex: Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews.. Gemini CLI has a free plan. OpenAI Codex has a free plan.
- Who is Gemini CLI best for?
- Gemini CLI is best for Developers who want a terminal-first coding agent, Teams already using Gemini Code Assist or Google Cloud, Engineers who like MCP-enabled local workflows.
- Who is OpenAI Codex best for?
- OpenAI Codex is best for Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem.