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Up to 4 tools, same rows for each: what it is, what it really costs, the trap, and how to wire it up. The URL carries your picks — send it to anyone.
OpenAI Codex CLIAiderCline
Quick read
- Free with no card: Aider, Cline.
| Field | OpenAI Codex CLIdevelopers.openai.com | Aideraider.chat | Clinecline.bot |
|---|---|---|---|
| What it is | OpenAI's open-source terminal agent, rewritten in Rust, that reads, edits and runs code inside a sandboxed working directory. It is bundled with ChatGPT subscriptions rather than sold separately, and defaults to gpt-5.6-sol at medium reasoning, with Terra and Luna covering cheaper everyday work. | The original terminal AI pair programmer, Apache-2.0 with roughly 48k stars and still actively developed. It builds a repo map of your codebase, edits files in place, runs linters and tests, and auto-commits every change with a written message. Works with almost any LLM, including local models. | An Apache-2.0 autonomous coding agent with roughly 64k GitHub stars, shipping as a VS Code and JetBrains extension, a CLI, an SDK and a web kanban board. Its Plan/Act split makes the agent draft an approach before touching files, and every diff and terminal command needs approval by default. |
| Category | AI IDEs & coding agents | AI IDEs & coding agents | AI IDEs & coding agents |
| Cost tier | mixed | free | free |
| Pricing | Bundled with ChatGPT Go $8 · Plus $20 · Pro $100-$200 · Business $25/user · or API key | Free and open source (Apache 2.0) · BYO API key | Free and open source (Apache 2.0) · BYO key or pay-as-you-go credits |
| Why builders pick it | If you already pay for ChatGPT this is effectively free extra capacity with no second bill. The Codex models are tuned for long autonomous runs, and the sandbox defaults are stricter than most rivals ship with. | Git-native discipline: every AI edit lands as its own commit, so git diff and git revert are your undo button. It is the cheapest serious option because you pay only raw API tokens, and it scripts cleanly into CI. | The transparency pick: you see every diff and every command before it runs, and you pay providers directly with no markup. Works with Claude, GPT, Gemini, Ollama and 200+ models via OpenRouter, so nothing is locked in. |
| Watch out for | OpenAI models only — no Claude or Gemini. Usage moved to token-based credits in April 2026, and GPT-5.4 and GPT-5.5 retire on 31 August 2026. | No GUI and no MCP-style tool ecosystem; the interaction model is chat plus file mentions, which feels dated next to fully autonomous agents. | BYO-key means costs are unbounded and easy to underestimate — one long agent session on a frontier model can run to several dollars. |
| How to wire it up | curl -fsSL https://chatgpt.com/codex/install.sh | sh | python -m pip install aider-install && aider-install | Install 'Cline' from the VS Code marketplace |
| Editor's pick | No | No | No |
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# Tool comparison — OpenAI Codex CLI vs Aider vs Cline Source: Kbaise, a directory of tools that work with Lovable projects. Pick one and tell me why before writing any integration code. ## OpenAI Codex CLI (openai-codex-cli) - URL: https://developers.openai.com/codex/cli/ - Category: AI IDEs & coding agents - Cost: mixed — Bundled with ChatGPT Go $8 · Plus $20 · Pro $100-$200 · Business $25/user · or API key - What it is: OpenAI's open-source terminal agent, rewritten in Rust, that reads, edits and runs code inside a sandboxed working directory. It is bundled with ChatGPT subscriptions rather than sold separately, and defaults to gpt-5.6-sol at medium reasoning, with Terra and Luna covering cheaper everyday work. - Why builders pick it: If you already pay for ChatGPT this is effectively free extra capacity with no second bill. The Codex models are tuned for long autonomous runs, and the sandbox defaults are stricter than most rivals ship with. - Trap: OpenAI models only — no Claude or Gemini. Usage moved to token-based credits in April 2026, and GPT-5.4 and GPT-5.5 retire on 31 August 2026. - Wiring: curl -fsSL https://chatgpt.com/codex/install.sh | sh - Full dossier: /api/public/tools/openai-codex-cli ## Aider (aider) - URL: https://aider.chat - Category: AI IDEs & coding agents - Cost: free — Free and open source (Apache 2.0) · BYO API key - What it is: The original terminal AI pair programmer, Apache-2.0 with roughly 48k stars and still actively developed. It builds a repo map of your codebase, edits files in place, runs linters and tests, and auto-commits every change with a written message. Works with almost any LLM, including local models. - Why builders pick it: Git-native discipline: every AI edit lands as its own commit, so git diff and git revert are your undo button. It is the cheapest serious option because you pay only raw API tokens, and it scripts cleanly into CI. - Trap: No GUI and no MCP-style tool ecosystem; the interaction model is chat plus file mentions, which feels dated next to fully autonomous agents. - Wiring: python -m pip install aider-install && aider-install - Full dossier: /api/public/tools/aider ## Cline (cline) - URL: https://cline.bot - Category: AI IDEs & coding agents - Cost: free — Free and open source (Apache 2.0) · BYO key or pay-as-you-go credits - What it is: An Apache-2.0 autonomous coding agent with roughly 64k GitHub stars, shipping as a VS Code and JetBrains extension, a CLI, an SDK and a web kanban board. Its Plan/Act split makes the agent draft an approach before touching files, and every diff and terminal command needs approval by default. - Why builders pick it: The transparency pick: you see every diff and every command before it runs, and you pay providers directly with no markup. Works with Claude, GPT, Gemini, Ollama and 200+ models via OpenRouter, so nothing is locked in. - Trap: BYO-key means costs are unbounded and easy to underestimate — one long agent session on a frontier model can run to several dollars. - Wiring: Install 'Cline' from the VS Code marketplace - Full dossier: /api/public/tools/cline ## Quick read - Free with no card: Aider, Cline. ## Rules 1. Prefer the free tier when no budget was stated, and say what the ceiling is. 2. Read the full dossier before integrating. 3. Fetch /api/public/models before writing any AI model ID.
Agents can fetch the same thing: GET /api/public/compare?slugs=openai-codex-cli,aider,cline