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Cline vs Copilot (2026): Open-Source Agent or GitHub's Assistant?
Cline (Agentdex profile) and GitHub Copilot (Agentdex profile) both put an AI coding agent in your editor, but they are built on opposite ideas. Cline is a free, open-source agent where you bring your own model and pay only for what you use. Copilot is GitHub's subscription assistant, with completions, chat, agents and code review bundled into plans that start free. This comparison covers how they differ on cost, models, workflow and privacy as of October 24, 2026, and who each one suits.
Key Takeaways
- Cline is free and open source (Apache 2.0). You pay for AI inference, either through your own API keys or Cline's credits, or run local models at no extra cost.
- GitHub Copilot has a Free plan (2,000 completions a month plus limited chat and agent use), Pro at $10/month, Pro+ at $39/month and Max at $100/month. Business is $19 and Enterprise $39 per user per month.
- Cline is the better fit if you want full model choice and step-by-step control. Copilot is the better fit if you want predictable pricing, fast inline completions and tight GitHub integration.
- Cline is built for agent tasks rather than inline completions, so many developers run both: Copilot for completions, Cline for larger changes.
Cline vs Copilot at a glance
Cline | GitHub Copilot | |
|---|---|---|
License | Open source (Apache 2.0) | Proprietary |
Pricing | Free extension; pay per use for inference, or ClinePass at $9.99/month | Free; Pro $10, Pro+ $39, Max $100 per month; Business $19, Enterprise $39 per user |
Models | Any major provider via your own key, Cline credits, or local models via Ollama and LM Studio | Models GitHub offers on your plan; Free is limited to auto model selection |
Where it runs | VS Code and VS Code-based editors, a CLI, a desktop app and an SDK | VS Code, Visual Studio, JetBrains IDEs, Xcode, Neovim, Eclipse, Zed (Agentdex profile), GitHub.com and a CLI |
Tab completion | Not the focus | Yes, unlimited on paid plans |
Agent workflow | Plan and Act modes, approve each step or auto-approve, checkpoints | Agent mode in the IDE, cloud agent that opens pull requests, code review |
How the pricing really compares
Cline's pricing page is short: the open-source extension is free for individual developers, and you pay only for AI inference. You can plug in your own API keys from providers such as Anthropic, OpenAI or Google, buy usage through the Cline provider at cost, or subscribe to ClinePass for $9.99 a month. Running a local model through Ollama or LM Studio costs nothing beyond your hardware. Enterprise plans add SSO, team management, audit logs and other admin features.
The catch is that your bill tracks your usage. A heavy day of agent work on a frontier model can cost more than a month of Copilot Pro. A light week can cost almost nothing. See our Cline pricing guide for a closer look.
GitHub Copilot uses flat plans with an allowance of GitHub AI Credits, where one credit equals $0.01. Pro at $10/month includes unlimited completions and a monthly credit allowance for chat, agents and premium models. Pro+ ($39) and Max ($100) raise that allowance and open up more models. If you go over, usage-based billing applies. For most individuals, that makes Copilot easier to budget.
Workflow: control vs convenience
Cline
Cline is built around an agent that plans before it acts. In Plan mode it reads your code and proposes a strategy. In Act mode it edits files across the project, runs terminal commands and reacts to the output. By default you approve each step, or you can switch on auto-approve. Checkpoints let you roll back any step, and you can ship a .clinerules file with your repo so the agent follows your standards. Cline also supports MCP servers, so you can connect it to tools such as databases or browsers.
The trade-off is attention. Cline works best when you watch what it does and steer it. It is also VS Code-first: Cline offers a JetBrains extension, but its pricing page lists that among Enterprise features, so check before you rely on it.
GitHub Copilot
Copilot started as autocomplete and still does that best: fast inline suggestions as you type, in almost any editor. On top of that you get chat, an agent mode that makes multi-file edits in the IDE, and a cloud agent that works on GitHub issues and opens pull requests for you. Copilot can also review pull requests and editor diffs, and it can delegate work to third-party agents such as Claude and Codex (Agentdex profile) (in preview).
The trade-off is model freedom. You get the models GitHub offers on your plan, and the Free plan is limited to automatic model selection.
Privacy and data
Cline runs client-side. Your code goes from your machine straight to the model provider you choose, so your privacy depends on that provider's terms. With a local model, nothing leaves your machine.
GitHub notes that data from individual Copilot plans may be used for model training unless you opt out in your settings. Business and Enterprise plans give organisations more control. If this matters to you, check the setting before you start.
Which one should you choose?
Choose Cline if you want an open-source agent, you care about choosing (or self-hosting) your model, you are happy to pay per use, and you like approving each step.
Choose GitHub Copilot if you want one predictable monthly price, the best inline completions, support across many editors, and agents that live inside GitHub issues and pull requests.
Use both if you want Copilot's completions while typing and Cline's agent for larger tasks. They run side by side in VS Code.
Still weighing options? Compare Cline vs Cursor, Cursor vs Copilot or browse Copilot alternatives.
FAQ
Is Cline better than GitHub Copilot?
Neither is better for everyone. Cline gives you more control and model choice. Copilot gives you better completions, wider editor support and simpler pricing.
Is Cline free?
The extension is free and open source. You pay for the AI model you use, through your own API key, Cline credits or ClinePass, unless you run a local model.
Can I use Cline and Copilot together?
Yes. Many developers keep Copilot on for inline completions and open Cline when they want an agent to plan and carry out a larger change.
How much does GitHub Copilot cost?
Copilot Free costs nothing. Pro is $10/month, Pro+ $39/month and Max $100/month. Business is $19 and Enterprise $39 per user per month.
Written by Agentdex Editorial. Agentdex is an independent directory reviewing AI coding tools; we are not affiliated with the companies mentioned. Prices and features are as of October 24, 2026, from official sources linked above. Always confirm on the vendor's site.