Cline vs OpenAI Codex
OpenAI Codex scores higher overall: 88/100 (S-tier) vs 80/100 (A-tier) for Cline in Coding agents & IDEs. Cline leads on value and openness & portability. OpenAI Codex leads on job fit, ease, momentum and trust & maturity. They tie on builder/gamer bonus.
Scores are initial editorial estimates from public information, not hands-on tests. How we score →
Side by side
| Cline | OpenAI Codex | |
|---|---|---|
| Tier | A | S |
| Overall score | 80/100 | 88/100 |
| Job fit | 20/30 | 27/30 |
| Ease / time-to-first-result | 12/15 | 13/15 |
| Value | 14/15 | 12/15 |
| Momentum | 12/15 | 14/15 |
| Openness & portability | 10/10 | 8/10 |
| Trust & maturity | 7/10 | 9/10 |
| Builder/gamer bonus | 5/5 | 5/5 |
| What it does | Open-source agent extension that plans and edits with your own model keys and supports MCP. | OpenAI's coding agent available as an open-source CLI, IDE extension and cloud task runner. |
| Best for | You want an open-source agent and full control of model choice and cost. | You have ChatGPT and want parallel cloud tasks plus a local CLI. |
| Skip it if | You want flat-rate pricing. | You are not in the OpenAI ecosystem. |
| Pricing | Free and open source; pay your model provider unverified editorial summary, not yet confirmed on an official pricing page | Included with ChatGPT Plus/Pro/Business; API usage also available unverified editorial summary, not yet confirmed on an official pricing page |
| Starting paid price | Not recorded | Not recorded |
| Free tier | Yes (unverified) | No (unverified) |
| Platforms | IDE extension · MCP | CLI · web · IDE extension · Mac · Linux · Win |
| Open source | Yes | Yes |
| Official site | cline.bot | openai.com |
| Last reviewed | Oct 18, 2026 | Oct 18, 2026 |
Which should you pick?
Pick Cline if…
You want an open-source agent and full control of model choice and cost.
Pick OpenAI Codex if…
You have ChatGPT and want parallel cloud tasks plus a local CLI.
FAQ
Is Cline better than OpenAI Codex?
OpenAI Codex scores higher overall: 88/100 (S-tier) vs 80/100 (A-tier) for Cline in Coding agents & IDEs. Cline leads on value and openness & portability. OpenAI Codex leads on job fit, ease, momentum and trust & maturity. They tie on builder/gamer bonus. The better pick depends on the job: choose Cline if you want an open-source agent and full control of model choice and cost. Choose OpenAI Codex if you have ChatGPT and want parallel cloud tasks plus a local CLI.
Do Cline and OpenAI Codex have free tiers?
Cline: free tier listed (unverified). OpenAI Codex: no free tier listed (unverified). Unverified means an editorial summary not yet confirmed on the vendor's pricing page.
Is Cline or OpenAI Codex open source?
Cline is listed as open source; OpenAI Codex is listed as open source.
How are these scores calculated?
Both tools are scored out of 100 on the same public rubric (job fit 30, ease 15, value 15, momentum 15, openness 10, trust 10, builder/gamer bonus 5) within their category. Current scores are initial editorial estimates from public information, not hands-on tests. Sponsors cannot buy points.
Keep exploring
- Cline review and score breakdown
- OpenAI Codex review and score breakdown
- OpenAI Codex alternatives
- Best AI coding agents and AI IDEs
- Best open-source AI coding agents
- Coding agents & IDEs tier list