OpenAI Codex vs Cline
OpenAI Codex: OpenAI's coding agent that writes, reviews and fixes code in the cloud or terminal. Cline: An open-source coding agent for VS Code that plans, edits files and runs commands. Here is how they compare on features, pricing, platforms, pros and cons.
Quick verdict
OpenAI Codex
Best for: Developers who want to hand off whole coding tasks.
Stands out for: Works across cloud, terminal and editor; Strong at multi-step tasks.
Cline
Best for: Developers who want a transparent, controllable coding agent.
Stands out for: Free and open source; You choose the model.
Side-by-side comparison
| Visit openai.com (opens in a new tab) | Visit cline.bot (opens in a new tab) | |
|---|---|---|
| What it is | OpenAI's coding agent that writes, reviews and fixes code in the cloud or terminal. | An open-source coding agent for VS Code that plans, edits files and runs commands. |
| Pricing | PaidIncluded with paid ChatGPT plans | Open source |
| Free to use | No | Yes |
| Category | AI Coding | AI Coding |
| Editor rank | #11 in category | #16 in category |
| Made by | OpenAI | Cline Bot Inc. |
| Best for | Developers who want to hand off whole coding tasks. | Developers who want a transparent, controllable coding agent. |
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OpenAI Codex vs Cline: questions
Is OpenAI Codex better than Cline?
Neither wins for everyone. Our editors rank OpenAI Codex slightly higher overall in AI Coding, but Cline can be the better fit: Developers who want a transparent, controllable coding agent.
Which is free, OpenAI Codex or Cline?
Cline can be used for free (open source), while OpenAI Codex is paid.
Can I use OpenAI Codex and Cline together?
Yes. Many people keep both and pick per task, for example ask the agent to fix a bug and open a pull request with OpenAI Codex, and have the agent add a feature across several files with Cline.