Claude Code vs Cursor vs Cline — Best AI Coding Tool 2026

Three tools, one API key

The AI coding tool landscape has converged on three leaders: Claude Code (terminal-first), Cursor (VS Code fork), and Cline (VS Code extension). All three can be configured to use Izzi API, which means 30% savings regardless of which tool you choose.

Feature comparison

Setup: Claude Code with Izzi API

# Install Claude Code
npm install -g @anthropic-ai/claude-code

# Configure Izzi API
export ANTHROPIC_BASE_URL=https://api.izziapi.com/anthropic
export ANTHROPIC_API_KEY=izzi-YOUR_KEY_HERE

# Start coding
claude "Refactor this Express app to use middleware pattern"

Setup: Cursor with Izzi API

1. Open Settings → Models → OpenAI API Key
2. Enter your Izzi API key: izzi-YOUR_KEY_HERE
3. Set base URL: https://api.izziapi.com/v1
4. Add models: claude-sonnet-4-20250514, gpt-5.4

Setup: Cline with Izzi API

1. Install the Cline extension in VS Code
2. Open Cline settings
3. Select "OpenAI Compatible" as provider
4. Set base URL: https://api.izziapi.com/v1
5. Enter API key: izzi-YOUR_KEY_HERE
6. Set model: claude-sonnet-4-20250514

Cost comparison (per hour of coding)

When to choose each

Claude Code — for terminal power users

• You live in the terminal
• You work on large refactoring tasks
• You want agentic multi-step workflows
• You value Extended Thinking for complex debugging

Cursor — for visual developers

• You prefer a full IDE experience
• You want inline code suggestions (Tab completion)
• You work with frontend/UI code
• You want Composer for multi-file edits

Cline — for VS Code loyalists

• You don't want to switch from VS Code
• You want full control over API costs (no subscription)
• You need to use your own API key exclusively

What's next

• Detailed setup guide for Cursor, Cline & Windsurf
• 7 ways to reduce your coding costs by 80%
• Which model is best for coding?