Codex CLI vs OpenAI CLI

A detailed comparison of Codex CLI and OpenAI CLI across 11 dimensions.

Codex CLI

OpenAI's open-source AI coding agent CLI

Price
BYOK (Bring Your Own Key)
GitHub Stars
100K+
Open Source
true
Models
GPT-4o, GPT-4.1, o-series (via API)
Max Context
128K tokens
Multi-file Edit
true
Git Integration
true
MCP Support
true
Sub-agents
false
Platforms
macOS, Linux
Released
2025
npm install -g @openai/codex

OpenAI CLI

OpenAI official CLI tool

Price
Pay-per-use (API)
GitHub Stars
31K+
Open Source
false
Models
GPT-4o, GPT-4.1, o-series, DALL·E
Max Context
128K tokens
Multi-file Edit
false
Git Integration
false
MCP Support
false
Sub-agents
false
Platforms
macOS, Linux, Windows
Released
2020
pip install openai

Full Comparison

ToolPriceGitHub StarsOpen SourceModelsMax ContextMulti-file EditGit IntegrationMCP SupportSub-agents
Codex CLI🔓
OpenAI's open-source AI coding agent CLI
BYOK (Bring Your Own Key)100K+✓GPT-4o, GPT-4.1, o-series (via API)128K tokens✓✓✓—
OpenAI CLI
OpenAI official CLI tool
Pay-per-use (API)31K+—GPT-4o, GPT-4.1, o-series, DALL·E128K tokens————

Quick Install

Codex CLInpm install -g @openai/codex
OpenAI CLIpip install openai