Neither tool runs a model, so “which is cheaper” is the wrong question about the tool and the right question about your setup. Cline and Claude Code both send requests to an endpoint you choose, and both accept the same one. What actually differs is the billing shape each defaults to, and how many tokens each sends to finish the same task.
The comparisons on this query rank features and impressions. This one stays on the two things that are checkable — and says plainly where it stops.
The shape of each
| Claude Code | Cline | |
|---|---|---|
| Where it runs | Terminal, as a CLI | VS Code, in the sidebar |
| Who makes it | Anthropic | Open source |
| Default payment | A Claude subscription, with a usage window | Your own API key, billed per token from the first minute |
| Custom endpoint | ANTHROPIC_BASE_URL + ANTHROPIC_AUTH_TOKEN | Base-URL and key fields on the Anthropic provider |
| Review step | Approval prompts, removable with a flag | Diffs surfaced in the editor before applying |
| A quiet month | Charged in full on a plan | Charged nothing |
Both point at the same endpoint
This is the fact that dissolves most of the cost argument. The two tools speak the same protocol, so one key serves both:
# The thing the comparisons skip: both tools point at the same endpoint,
# so "which is cheaper" is not a property of the tool. It is a property of
# how many tokens each one sends.
# Claude Code — two environment variables.
export ANTHROPIC_BASE_URL=https://api.kunavo.com
export ANTHROPIC_AUTH_TOKEN=sk-kn-...
export ANTHROPIC_DEFAULT_HAIKU_MODEL=claude-haiku-4-5
# Cline — the same two values, in the extension's provider settings:
# API Provider Anthropic
# Base URL https://api.kunavo.com
# API Key sk-kn-...Once both are on the same endpoint, comparing them stops being a research project: run the same task in each and read the actual charges from one usage view. That is a measurement you can make in an afternoon and it beats any third-party verdict, including this page's.
What actually moves the bill
Payment shape, first. A subscription buys a fixed cost and a ceiling you cannot buy through; a key buys no ceiling and no floor. Which is cheaper is arithmetic on your own volume, worked through on Claude Pro and Max limits.
Context appetite, second. Agentic tools re-send context every step, so spend tracks how much each tool carries per turn rather than how many turns it takes. That number depends on your repo and your task, which is exactly why a generic “X is cheaper” claim does not survive contact with a real project.
Tier mapping, third. Whatever handles background sub-tasks should be the cheapest model you have. In Claude Code that is ANTHROPIC_DEFAULT_HAIKU_MODEL; the arithmetic for the main model is on Opus vs Sonnet vs Haiku.
Where this page stops
It does not tell you which produces better code. We have not run a controlled comparison of the two on the same tasks, and an impression dressed as a measurement is worse than an honest gap. If output quality is your deciding factor, the afternoon experiment above answers it for your codebase, which is the only place the answer is stable.
Setup detail per tool: Cline with a custom endpoint and getting an API key for Claude Code. If you are weighing a third option, the terminal-agent comparison is on Claude Code vs Codex.
FAQ
What is the difference between Cline and Claude Code?
Claude Code is Anthropic's own agentic CLI, installed and run in a terminal, and it defaults to being paid for through a Claude subscription. Cline is an open-source VS Code extension that has been bring-your-own-key from the start: you pick a provider, paste a key, and every request is billed to you directly. Both edit files, run commands and iterate on results; the difference that shows up first in practice is where they live — a terminal versus the editor sidebar — and the difference that shows up on the bill is how each is paid for.
Is Cline cheaper than Claude Code?
Neither is cheaper as a tool, because neither runs a model — the bill comes from whichever endpoint you point them at, and both accept the same one. What differs is the billing shape and the token appetite. Claude Code on a subscription has a fixed monthly cost and a usage window; Cline on a key has no window and no floor, so a quiet week costs nothing. Beyond that, cost tracks how much context each tool re-sends per step, which depends on your repo and your task far more than on the tool's name.
Can Cline and Claude Code use the same API key?
Yes. Both speak the Anthropic Messages API, so one endpoint and one key serves both — Claude Code through ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN, Cline through the base-URL and key fields on its Anthropic provider. On Kunavo that means one sk-kn- key, one balance and one usage view no matter which tool you happen to be in, which also makes an honest side-by-side possible: run the same task in each and compare the actual charges.
Which one should I use?
Pick on where you work, not on a verdict from a comparison page. If you live in the terminal and want an agent that runs long unattended stretches, Claude Code's shape fits. If you want the diff in the editor with a review step in front of it, Cline's shape fits. Both are configurable against the same endpoint, so the choice is reversible in about a minute — which is the strongest argument against agonising over it.
Does this page benchmark which tool produces better code?
No, deliberately. We have not run a controlled comparison of the two tools' output on the same tasks, and publishing an impression as if it were a measurement would be worse than saying nothing. What is checkable — how each is configured, how each is billed, and the fact that both reach the same models through the same key — is what this page covers.
How do I move Cline off a first-party key?
Cline's Anthropic provider has a base-URL field, so it is a settings change rather than a migration: set the base URL to the endpoint and paste its key. Rates on Kunavo are $1.20 / $6.00 per 1M tokens for Claude Sonnet 4.6 and $0.40 / $2.00 for Claude Haiku 4.5, each shown next to Anthropic's list price on the pricing page. The step-by-step is on the Cline setup guide.