Codex CLI vs. Deep Agents CLI

Feature	Codex CLI	Deep Agents CLI
Tagline	Lightweight coding agent that runs in your terminal	A pre-built coding agent powered by any LLM with tool calling
Website	https://openai.com/codex	https://docs.langchain.com/deepagents
Language	rust	python
Release Date	April 30, 2025	October 19, 2025
Last Updated	June 3, 2026	June 3, 2026
Provider Type	AI Lab	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	deep	basic
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	No
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	No
Voice Mode	Yes	No
IDE Integration	VS Code, Zed (via ACP)	None - terminal only
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent; compression at threshold
Terminal Bench 2.0	#6 · 82.0% ±2.2 1	#29 · 66.5% ±3.1 2
Supported Models	All frontier GPT, Codex models: GPT-5.5, GPT-5.4, GPT-5.4 pro, GPT-5.3-Codex, optional custom models.	Any LangChain model: Claude, GPT-5, Gemini, DeepSeek, Ollama, Groq, xAI
Pricing Model	Subscription	BYOK
Free Tier	No	Yes
Price Range	$20-200/mo	Free (BYOK)
Source Code Availability	Open Source (Apache-2.0)	Open Source (MIT)
Source Code	https://github.com/openai/codex	https://github.com/langchain-ai/deepagents
Development State	active	active

¹ Codex CLI tested with GPT-5.5 on Terminal Bench v2.0.

² Deep Agents CLI tested with GPT-5.2-Codex on Terminal Bench v2.0.