
Claude Code
aider
Cursor
opencode
Ghostty
warp by spolu
GitHub Copilot
Frontier reasoning in the terminal

Which is more popular?
Based on our record, OpenAI Codex CLI seems to be more popular. It has been mentioned 45 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | github.com | codediagram.io |
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OpenAI Codex CLI
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Recommendations tracked on public social media and blogs since March 2021.


For Codex there is no need to decompile because unlike Claude Code, Codex is open source [1] and written in Rust. There are lot of other amazing open source agent harnesses like OpenCode [2] and Pi [3]. [1]... - Source: Hacker News / about 9 hours ago
When you run OpenAI Codex CLI or Claude Code (verified October 14, 2026) inside a repository, the agent has full access to your local shell, file tree, and HTTP clients. That works for backend services and web apps that can be driven... - Source: dev.to / 2 days ago
That was the gap we had at Expo. We bundle our agent skills into one plugin for Claude Code and Codex, covering native interfaces, navigation, data fetching, animations, Expo Modules, and our cloud services. We kept adding skills and... - Source: dev.to / 8 days ago
Tracking Code Diagram since Nov 2023.
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