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OpenAI Codex ×

Gemini CLI ×

OpenAI Codex ×
Gemini CLI ×

Comparator · Coding

OpenAI Codex$8/mo (Go)vs

Gemini CLIFree tier

Starting price$8/mo · free

Free tieryes · yes

Plans documented6 · 6

Platforms3 · 1

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Comparison of OpenAI Codex, Gemini CLI
	OpenAI Codex Visit website for OpenAI Codex (opens in a new tab)	Gemini CLI Visit website for Gemini CLI (opens in a new tab)
Category	Coding	Coding
Main use cases	Quick coding tasks Focused coding sessions Automatic code review Running tasks in the cloud Automation in CI with an API key	Querying large codebases Editing files from the terminal Running shell commands Web search and fetch Automating workflows via MCP
Best for	ChatGPT subscribers, Developers wanting CLI plus cloud agent	Terminal-centric developers, Users of Google AI, AI Studio or Vertex AI
Platforms	Web, Desktop, Mobile	Desktop
Pricing model	Freemium	—
Pricing	Free $0/mo; Go $8/mo; Plus $20/mo; Pro from $100/mo ($100, $200 or $500 tiers); Business $20/user/mo billed annually ($25 monthly); Enterprise/Edu contact sales; API key pay per API pricing. Checked Sep 29, 2026. Official pricing ↗	See official pricing US prices not confirmed Official pricing ↗
Key features	Open-source CLI installable via script, npm or Homebrew IDE extension (VS Code, Cursor, Windsurf) Desktop app Codex on the web and iOS (Plus plan) Cloud integrations such as code review and Slack ChatGPT credits to extend usage	Install via npm, npx, Homebrew or MacPorts Google Search grounding File operations and shell commands MCP support Extensions Agent Skills and Plan Mode
Pros	Free plan available to try Codex Several surfaces: CLI, IDE, app, web Same usage shared with ChatGPT Work API-key option for CI	Open source under Apache 2.0 Multiple auth paths: Google account, API key, Vertex AI Extensible via MCP and extensions Weekly preview releases
Limitations	Usage limits apply per plan API-key use lacks cloud features such as GitHub code review and Slack Free and Go plans list desktop app only Some models retire Oct 14, 2026 (GPT-5.5)	Unpaid tier and Google One users were moved to Antigravity CLI on June 18, 2026 No USD prices shown on the plans page Higher limits require paid Google plans or API billing Free-tier API data may be used to improve products
Ratings	Editorial Not yet reviewed Users No user reviews yet	Editorial Not yet reviewed Users No user reviews yet
Review status	Listed Verified Sep 29, 2026	Listed Verified Sep 29, 2026