Cline vs OpenAI Codex
An honest, side-by-side comparison from the ToolHund editors — plus what the community actually votes for.
Cline
Open coding agent for VS Code, terminal, and SDK workflows
Cline is an open-source coding agent with Plan and Act modes, MCP support, terminal workflows, and IDE integration.
Visit ClineOpenAI Codex
AI coding agents for software engineering teams
Codex helps engineering teams complete pull requests, refactors, code reviews, and automations across parallel coding workflows.
Visit OpenAI CodexCline takes the ToolHund Score (79/100 vs 64/100) — but the right pick depends on your workflow.
Pick Cline if you need: developers who want an open-source coding agent with local control. · Pick OpenAI Codex if you need: developers and teams using chatgpt or openai tools for software engineering work.
Which one should you pick?
- You need developers who want an open-source coding agent with local control.
- Your team fits: great for small teams (2–20) and serious solo pros
- Learning curve OK: steep — expect a few hours to feel productive
- Pricing works: Open source · Bring your own key
- You need developers and teams using chatgpt or openai tools for software engineering work.
- Your team fits: great for small teams (2–20) and serious solo pros
- Learning curve OK: steep — expect a few hours to feel productive
- Pricing works: Included with ChatGPT paid plans
Side-by-side comparison
| Feature | Cline | OpenAI Codex |
|---|---|---|
| Category | Agents | Agents |
| Pricing | Open source · Bring your own key | Included with ChatGPT paid plans |
| Best for | Developers who want an open-source coding agent with local control. | Developers and teams using ChatGPT or OpenAI tools for software engineering work. |
| Active users | 200K+ | Popular |
| Editor rating | 4.7 / 5 | 4.7 / 5 |
- Plan & Act modes
- MCP support
- Terminal workflows
- VS Code extension
- Parallel tasks
- PR automation
- Code review
- ChatGPT integration
Which one would you pick?
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Why did you choose Cline or OpenAI Codex?
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Common questions
Is Cline better than OpenAI Codex?+
Cline scores 79/100 on the ToolHund rubric vs OpenAI Codex at 64/100 — but "better" depends on your workflow. Cline wins if you need developers who want an open-source coding agent with local control.
What is the pricing difference between Cline and OpenAI Codex?+
Cline: Open source · Bring your own key. OpenAI Codex: Included with ChatGPT paid plans.
Can I use both Cline and OpenAI Codex together?+
Yes — many teams pair them. Use Cline for developers who want an open-source coding agent with local control. and switch to OpenAI Codex when you need developers and teams using chatgpt or openai tools for software engineering work.
Who should avoid Cline?+
Casual or one-off users — the monthly fee won't pay back
Who should avoid OpenAI Codex?+
Casual or one-off users — the monthly fee won't pay back
Other Agents comparisons
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