Cline vs OpenAI Codex CLI
A side-by-side comparison of Cline and OpenAI Codex CLI, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | Cline | OpenAI Codex CLI |
|---|---|---|
| Category (differs) | Agent | IDE |
| Pricing (differs) | BYO KEY | FREEMIUM |
| License (differs) | Open source | Open core |
| Deployment | Local | Local |
| Platforms (differs) | VS Code extension | CLI, macOS, Linux, Windows |
| Model support (differs) | BYO key / model | Single model (proprietary) |
| Vendor (differs) | Cline Bot Inc. | OpenAI |
The honest brief
Cline
BYO-key VS Code agent that shows and asks approval for every edit and command — no markup, no lock-in.
- No vendor markup on token costs
- Approves every edit/command before running
- Bring any model (Claude, local, etc.)
- Plan/Act split for review before changes
- BYO-key means you pay provider token costs
- VS Code only, no standalone IDE
- Slower than Cursor on equivalent tasks
- No codebase indexing or background agents
OpenAI Codex CLI
Open-source Rust rewrite of OpenAI's terminal coding agent; sign in with a paid ChatGPT plan or bring your own API key.
- Runs locally in your terminal
- Fast Rust implementation
- MCP tools and parallel subagents
- Reviewable conversational edit loop
- Best with OpenAI/GPT models
- Terminal-only, no full IDE
- Newer than rival CLIs