Codex CLI vs. IBM Bob

Feature	Codex CLI	IBM Bob

Tagline	Lightweight coding agent that runs in your terminal	Your AI SDLC (Software Development Lifecycle) partner from IBM
Website	https://openai.com/codex	https://bob.ibm.com
Language	rust	javascript
Release Date	April 30, 2025	September 2, 2025
Last Updated	June 3, 2026	May 20, 2026
Provider Type	AI Lab	AI Lab
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	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	VS Code, Zed (via ACP)	Bob IDE
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	Yes	No
Context Window	Model-dependent	Model-dependent
Terminal Bench 2.0	#6 · 82.0% ±2.2 ¹
Supported Models	All frontier GPT, Codex models: GPT-5.5, GPT-5.4, GPT-5.4 pro, GPT-5.3-Codex, optional custom models.	Multi-provider (IBM-managed)
Pricing Model	Subscription	Freemium
Free Tier	No	Yes
Price Range	$20-200/mo	Free / $20-200/mo
Source Code Availability	Open Source (Apache-2.0)	Proprietary Software
Source Code	https://github.com/openai/codex	https://github.com/IBM/ibm-bob
Development State	active	active