Claude Code vs Cline: How They Actually Differ
Claude Code suits terminal-first developers who want first-class Anthropic model support and MCP extensibility. Cline suits VS Code users who want an open-source, inspectable agent they drive with their own API key. They differ in editor, model lock-in, and how pricing works.
Compiled 2026-08-21 from our catalogue entries for Claude Code and Cline.
The short answer
- Pick Claude Code if
- You live in the terminal, want Anthropic Claude Opus, Sonnet, or Haiku as your model, and need MCP, skills, hooks, or slash commands to encode team workflows.
- Pick Cline if
- You work inside VS Code, prefer an open-source agent under Apache 2.0 that you can inspect, and are comfortable bringing your own API key for plan/act workflows.
- Cheapest way in
- Cline lists as Free to start, but you still pay for the API key you supply. Claude Code is freemium and the starting price is not recorded on file.
- What we could not compare
- Verified plan tiers, dollar amounts, and per-task budgets are not on file for either product, so total cost of ownership is left out.
Both are AI coding agents that go beyond autocomplete — they read files, run commands, and act on a repo. The fact sheet places them in the same AI Coding Agents category, but they sit at different ends of the spectrum: Claude Code is the official Anthropic CLI agent, and Cline is an open-source VS Code extension.
The split that matters this week is where each one runs and how it is priced. Claude Code targets developers who already work in a terminal on macOS, Windows, or Linux. Cline targets developers who keep VS Code open and want an agent they can inspect line by line. If your week is split between IDE and shell, this is the choice that decides it.
Side by side
Every cell is a field on our catalogue entry for that tool, copied as recorded. Rows where the two differ come first; blank fields say so rather than being filled in.
| Claude Code | Cline | |
|---|---|---|
| Pricing model | Freemium | Free |
| Starts at | Not recorded | Free |
| Runs on | mac, win, linux, cli | vscode-ext |
| Public source code | No public repo listed | Yes — public repo |
| Category | AI Coding Agents | AI Coding Agents |
| Public docs | Not listed | Not listed |
- Public source code: From the repository link on each catalogue entry, not a licence audit.
Where Claude Code is the better fit
- First-class support for Anthropic Claude Opus, Sonnet, and Haiku, with no model swap needed inside the tool.
- Native MCP support as both client and server, so MCP-based tooling plugs in directly.
- Skills, hooks, and slash commands let teams encode their own workflow primitives rather than improvising each session.
- Cross-platform coverage across macOS, Windows, and Linux in a terminal-first package.
Where Cline is the better fit
- Runs inside VS Code as an extension, so there is no separate app to install or keep in sync.
- Open source under Apache 2.0, with a transparent agent loop you can inspect.
- Plan/act modes and approval-gated terminal execution keep a human in the loop before commands run.
- Listed as Free to start, lowering the barrier to try it on an existing repo.
Which one should you pick?
It is the Anthropic-official CLI agent with first-class Opus, Sonnet, and Haiku support, native MCP, and hooks for repeatable workflows, and it runs on macOS, Windows, and Linux.
It is open source under Apache 2.0, lives inside VS Code, exposes a transparent agent loop, and uses plan/act modes with approval-gated commands.
It is listed as Free and integrates with your existing key, though the fact sheet warns that cost can climb quickly without per-task budgets.
The sheet calls out native MCP as both client and server, plus skills, hooks, and slash commands specifically for encoding workflow primitives.
Frequently asked questions
- Do I need a separate API key for either tool?
- Claude Code uses Anthropic Claude models and its pricing is listed as freemium with no starting price recorded. Cline explicitly requires you to bring your own API key; there is no managed pricing tier on file.
- Which one works inside VS Code?
- Only Cline. It is listed as a VS Code extension with no separate app. Claude Code is a terminal-first CLI agent for macOS, Windows, and Linux.
- Can I use GPT or Gemini with Claude Code?
- Not according to the fact sheet. Claude Code is locked to Anthropic models, with no GPT or Gemini support out of the box.
- Is Cline really free?
- Cline is listed as Free to start, but the fact sheet notes you supply your own API key and warns that cost can escalate quickly without per-task budgets.
- Where can I read Cline's source?
- The fact sheet lists the public repo at https://github.com/cline/cline under Apache 2.0. Claude Code has no public repo listed.
What we compared
This page states nothing that is not in the two catalogue entries below. The exact text used to write it is reproduced here so you can check our reading, and both tools link through to their own pages and to the vendor.
- /tools/claude-code — checked 2026-05-25 · official site
- /tools/cline — checked 2026-05-25 · official site
Show the source text
## Claude Code (/tools/claude-code) Tagline: Anthropic's official CLI agent for Claude — runs in the terminal, edits files, executes commands, and ships PRs. Category: AI Coding Agents Pricing model: freemium Starts at: Not recorded Platforms: mac, win, linux, cli Public repo: none listed Docs: none listed Verified plans: none on file Strengths on file: First-class support for Anthropic Claude Opus, Sonnet, and Haiku.; MCP server protocol is natively supported as both client and server.; Skills, hooks, and slash commands let teams encode workflow primitives. Limits on file: Locked to Anthropic models — no GPT or Gemini support out of the box.; Terminal-first UX has a learning curve for developers expecting an IDE. Claude Code is Anthropic's official command-line agent for Claude — it runs in the terminal, edits files, executes commands, and ships pull requests. Its strength is depth on Claude and extensibility: first-class support for Opus, Sonnet, and Haiku, native MCP as both client and server, and skills, hooks, and slash commands that let teams encode their own workflow primitives. It's for developers comfortable in the terminal who want an agent that acts, not just autocompletes. Two trade-offs: it's locked to Anthropic models — no GPT or Gemini out of the box — and the terminal-first UX has a learning curve if you're expecting an IDE. In the stack it's the terminal-first agent next to IDE-native Cursor and the open, model-agnostic Aider. ## Cline (/tools/cline) Tagline: Open-source autonomous coding agent for VS Code, formerly known as Claude Dev. Category: AI Coding Agents Pricing model: free Starts at: Free Platforms: vscode-ext Public repo: https://github.com/cline/cline Docs: none listed Verified plans: none on file Strengths on file: Runs inside VS Code as an extension, no separate app to install.; Open source under Apache 2.0; transparent agent loop you can inspect.; Supports plan/act modes and approval-gated terminal execution. Limits on file: Requires bringing your own API key — no managed pricing tier.; Cost can escalate quickly without per-task budgets. Cline is an open-source autonomous coding agent that runs inside VS Code — formerly known as Claude Dev. Its draw is transparency in a familiar editor: it's a VS Code extension with no separate app, open source under Apache 2.0 with an agent loop you can inspect, and it supports plan/act modes with approval-gated terminal execution. It's for VS Code users who want an inspectable agent with a human in the loop. Two caveats: it needs your own API key — there's no managed pricing tier — and cost can escalate quickly without per-task budgets. It's the in-VS-Code, open option next to terminal agents like Aider and Claude Code.
Change log
- 2026-08-21 — First published, compiled from the catalogue entries for Claude Code and Cline.