Codex CLI vs Gemini CLI Codex CLI vs Gemini CLI
Side-by-side comparison of Codex CLI (OpenAI) and Gemini CLI (Google) - pricing, key features, ideal use cases, recent updates, and verdicts.
Codex CLI is an open-source, terminal-native coding agent built in Rust that allows developers to inspect, edit, and run code directly from their shell. It supports interactive, auto-edit, and fully sandboxed autonomous modes, enabling complex workflows like CI/CD integration, automated code reviews, and multi-agent task execution.
Gemini CLI is an open-source AI agent designed to integrate Gemini models directly into the terminal for code understanding, task automation, and workflow management. While formerly a popular free individual tool, it has transitioned into an enterprise-focused utility following the launch of the Antigravity CLI for individual users.
DevOps, infrastructure engineering, and terminal-heavy development workflows that benefit from local file access and autonomous agent execution.
Skip if: Users prioritizing frontend/UI-heavy development tasks or those requiring non-OpenAI models like Claude or Gemini.
Enterprise developers and teams using Gemini Code Assist who require a terminal-native agent with massive context capabilities and secure, policy-controlled environments.
Skip if: Individual developers or hobbyists seeking a free, long-term personal AI coding agent, as the tool is no longer supported for consumer accounts and has been superseded by Antigravity CLI.
| Codex CLI | Gemini CLI | |
|---|---|---|
| Company | OpenAI | |
| Category | Terminal & CLI Agents | Terminal & CLI Agents |
| Pricing | Freemium Free and open source to use, but requires an active OpenAI plan (Plus, Pro, Business, or Enterprise) or pay-as-you-go API usage to cover model token costs. | Freemium Open-source tool with enterprise-only support; individual consumer access (free tier, Pro, and Ultra) was sunset on June 18, 2026. Ongoing access is provided exclusively to organizations with Gemini Code Assist Standard or Enterprise licenses, or via pay-per-use Gemini Enterprise Agent Platform API keys. |
| Key features |
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| Best for | DevOps, infrastructure engineering, and terminal-heavy development workflows that benefit from local file access and autonomous agent execution. | Enterprise developers and teams using Gemini Code Assist who require a terminal-native agent with massive context capabilities and secure, policy-controlled environments. |
| Not ideal for | Users prioritizing frontend/UI-heavy development tasks or those requiring non-OpenAI models like Claude or Gemini. | Individual developers or hobbyists seeking a free, long-term personal AI coding agent, as the tool is no longer supported for consumer accounts and has been superseded by Antigravity CLI. |
| Recent updates | Recent releases added full MCP integration, the GPT-5.6 model family, improved background computer use for the desktop app, and a unified pricing structure across ChatGPT subscriptions. | The project transitioned to an enterprise-exclusive maintenance model after June 18, 2026. Recent technical updates include support for Gemini 3.1 Pro, a new policy engine for granular tool execution control, and improved sandboxing for agentic tasks. |
| Verdict | An essential, high-performance tool for OpenAI-centric development teams, offering unmatched terminal integration and an extensive plugin ecosystem, though constrained by its exclusive reliance on OpenAI models. | A powerful, high-context terminal agent that remains a top-tier choice for enterprise environments, though its transition to an enterprise-only product significantly restricts its utility for the broader developer community. |
Is Codex CLI or Gemini CLI free?
Codex CLI is Freemium; Gemini CLI is Freemium. Check each tool's detail page for full pricing breakdowns.
Which should I choose, Codex CLI or Gemini CLI?
Codex CLI is best for DevOps, infrastructure engineering, and terminal-heavy development workflows that benefit from local file access and autonomous agent execution. Gemini CLI is best for Enterprise developers and teams using Gemini Code Assist who require a terminal-native agent with massive context capabilities and secure, policy-controlled environments.
What is the main difference between Codex CLI and Gemini CLI?
Codex CLI (OpenAI) is listed as Terminal & CLI Agents; Gemini CLI (Google) is listed as Terminal & CLI Agents. Codex CLI is an open-source, terminal-native coding agent built in Rust that allows developers to inspect, edit, and run code directly from their shell. It supports interactive, a… By contrast, Gemini CLI is an open-source AI agent designed to integrate Gemini models directly into the terminal for code understanding, task automation, and workflow management. While former…
Comparison content is generated from our enriched tool data. Verify pricing and features with each vendor before purchasing.