OpenAI Codex vs Kaku (2026): Which Vibe Coding App Is Better?

Both are popular terminal coding agents. Here is how OpenAI Codex and Kaku stack up on price, strengths and weaknesses, and which one we would pick.

OpenAI Codex

OpenAI's coding agent for the terminal, IDE and cloud, included with ChatGPT plans

9.1 /10

Pricing: Free plan, paid from $8/mo

Pros

Included with ChatGPT plans you may already pay for
Open-source CLI plus cloud tasks that open pull requests
Reads AGENTS.md, the cross-tool instructions file

Cons

Fewer extension points than Claude Code (no plugin marketplace)
Usage limits depend on your ChatGPT plan

Visit OpenAI Codex ↗

Kaku

Zero-config macOS terminal built on WezTerm for running AI coding CLIs

7.5 /10

Pricing: Free

Pros

Popular and active: ~6k GitHub stars, 1,660+ commits, MIT licensed
Ships with sensible zero-config defaults, fonts, themes and shell integration tuned for running AI coding CLIs
Built-in glue for a real workflow: pane/tab management plus Lazygit and Yazi integration alongside AI chat/command-suggestion shortcuts

Cons

macOS only
It's a terminal host, not an agent itself — you still bring your own AI CLI (Claude Code, Gemini, Copilot, Kimi Code) and API keys

Visit Kaku ↗

OpenAI Codex vs Kaku at a glance

	OpenAI Codex	Kaku
Editor score	9.1 / 10	7.5 / 10
Pricing model	Freemium	Free
Starting price	$8/mo	Free
Reader upvotes	1	0
Best for	terminal, agent, openai	terminal, macos, wezterm
Agent Skills support	Yes	No
Subagents support	Yes	No
MCP support	Yes	No
AGENTS.md support	Yes	No
Plugins support	No	No
Hooks support	No	No
Rules support	No	No
Agent skills in this directory	58	0
Subagents & agents in this directory	43	3
MCP servers in this directory	74	0

Our pick

OpenAI Codex edges it with a score of 9.1 versus 7.5. OpenAI Codex is the better fit if you value: included with chatgpt plans you may already pay for, open-source cli plus cloud tasks that open pull requests. Choose Kaku instead if you need: popular and active: ~6k github stars, 1,660+ commits, mit licensed, ships with sensible zero-config defaults, fonts, themes and shell integration tuned for running ai coding clis.