Codex CLI vs. Ralph TUI

Feature	Codex CLI	Ralph TUI

Tagline	Lightweight coding agent that runs in your terminal	AI agent loop orchestrator for terminal
Website	https://openai.com/codex	https://ralph-tui.com
Language	rust	typescript
Release Date	April 30, 2025	January 14, 2026
Last Updated	June 3, 2026	April 28, 2026
Provider Type	AI Lab	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	deep	deep integration with git worktrees
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	No
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	VS Code, Zed (via ACP)	None - terminal only
Hooks / Extensions	Yes	No
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Depends on underlying agent
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.	Orchestrates Coding Agents: Claude Code, OpenCode, Gemini CLI, Codex, Kiro, Droid, Cursor CLI.
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/subsy/ralph-tui
Development State	active	active