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Codex CLI

OpenAI's terminal AI coding agent that reads codebases and executes changes.

4.3(external rating)
#64 in Coding
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Free🪟 Desktop
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About Codex CLI

OpenAI Codex CLI is a terminal-based AI coding agent that reads your codebase, proposes changes, and executes commands. It uses OpenAI's o3 and o4-mini models for reasoning about code in your terminal.

Key Features

terminal agent
codebase reading
auto execution
reasoning
open source

💰 Pricing

Free

Free and open source. Uses OpenAI API credits.

Free$0

Open source, uses your OpenAI API credits

Frequently Asked Questions

Is Codex CLI free?
Yes, Codex CLI is completely free to use. Free and open source. Uses OpenAI API credits.
What is Codex CLI used for?
Codex CLI is primarily used for Coding. OpenAI's terminal AI coding agent that reads codebases and executes changes.
What platforms does Codex CLI work on?
Codex CLI is available on Desktop.
What are the best alternatives to Codex CLI?
Top alternatives to Codex CLI include ChatGPT, Claude, GitHub Copilot. These tools offer similar functionality and may suit different budgets or workflows.

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📊 Comparison vs Alternatives

Feature
Codex CLI logoCodex CLI
PricingFreeFreemiumFreemiumFreemium
Rating⭐ 4.3⭐ 4.8⭐ 4.8⭐ 4.6
Free Tier
Popularity
70%
100%
94%
92%

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Quick Stats

Rating
4.3
ReviewsExternal data
Coding#64
PricingFree
Popularity
70%

Categories

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Last updated: 2026-03-28·Claim this listing
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