Codex CLI vs Junie CLI

Feature	Codex CLI	Junie CLI
Tagline	Lightweight coding agent that runs in your terminal	An LLM-agnostic coding agent built for real-world development
Website	https://openai.com/codex	https://junie.jetbrains.com
Language	rust	shell
Release Date	April 30, 2025	July 15, 2025
Last Updated	June 29, 2026	June 3, 2026
Provider Type	AI Lab	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	deep	deep
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	Yes
Sandbox / Permissions	Yes	No
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	VS Code, Zed (via ACP)	JetBrains IDEs
Hooks / Extensions	Yes	No
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent
Terminal Bench	#1 · 58.2% ±2.8 (Terminal-Bench 4.0) 1	#21 · 71.0% ±2.9 (Terminal-Bench 2.0) 2
AA Coding Agent Index	62% · GPT-6 Astra (max)	-
Supported Models	All frontier GPT, Codex models: GPT-5.6 Sol / Terra / Luna, GPT-5.5, GPT-5.4 pro, GPT-5.3-Codex, optional custom models.	Multi-provider including BYOK
Supported Subscriptions	ChatGPT	-
Pricing Model	Subscription	Freemium
Free Tier	No	Yes
Price Range	$20-200/mo	Free (BYOK) / $10-60/mo
Source Code Availability	Open Source (Apache-2.0)	Proprietary Software
Source Code	https://github.com/openai/codex	https://github.com/JetBrains/junie
Development State	active	active

¹ Codex CLI tested with GPT-6 Astra on Terminal-Bench 4.0.

² Junie CLI tested with Multiple on Terminal-Bench 2.0.