Cline vs OpenAI Codex CLI
Which AI coding tool should you choose? Feature, pricing, and workflow comparison for 2026.
Quick Comparison
Cline
Autonomous coding agent in VS Code. Can create/edit files, run commands, and use browser.
| Pricing | Free extension, API usage-based |
| Type | VS Code Extension |
OpenAI Codex CLI
OpenAI's CLI tool for AI-assisted coding. Uses OpenAI's o-series models.
| Pricing | API usage-based |
| Type | Tool |
Key Differences
Cline is a versatile AI coding tool. OpenAI Codex CLI offers a different approach.
Choose Cline if you want terminal-based AI coding. Choose OpenAI Codex CLI if you prefer a different coding workflow.
Best AI Models to Use with Cline and OpenAI Codex CLI
Both tools support multiple AI models. Here are the most cost-effective options ranked by value.
| # | Model | Provider | Input ($/M) | Medium Project | Context |
|---|---|---|---|---|---|
| 1 | GLM-4-Flash | Zhipu AI | $0.010 | $0.01 | 128K tokens |
| 2 | Amazon Nova Micro | Amazon | $0.035 | $0.04 | 128K tokens |
| 3 | Gemini 2.5 Flash Lite | $0.037 | $0.04 | 1M tokens | |
| 4 | MiniMax Text 01 | MiniMax | $0.050 | $0.06 | 8K tokens |
| 5 | Stable Code 3B | Stability AI | $0.050 | $0.06 | 32K tokens |
| 6 | Llama 3.1 8B | Meta | $0.050 | $0.04 | 128K tokens |
| 7 | Phi-3 Mini | Microsoft | $0.050 | $0.04 | 128K tokens |
| 8 | Amazon Nova Lite | Amazon | $0.060 | $0.07 | 300K tokens |