AI Agent Guides

Learn about AI coding agents — fundamentals, agent deep-dives, comparisons, and buying advice.

📖 Fundamentals

What Is an AI Coding Agent?
How agents differ from LLMs, architecture matters more than the model
AI Agent vs LLM — What's the Difference?
LLMs generate text. Agents plan, use tools, execute, and fix errors
How AgentRanks Scores Work
SWE-bench + 7-dimension architecture rubric + combined formula
What Is SWE-Bench?
The AI coding benchmark explained — Verified vs Pro, top scores
AI Agent Architecture Explained
7 key dimensions: orchestration, memory, tools, safety, and more

🤖 Agent Guides

Claude Code Guide 2026
Architecture 94/100, Coordinator mode, desktop app, pricing tiers
OpenAI Codex Guide 2026
Architecture 69/100, 8 sub-agents, Terminal-Bench leader
Cursor Guide 2026
IDE-native agent, Tab completions, Composer, multi-model
Aider Guide 2026
Git-native open-source agent, architect mode, 42K stars
Cline Guide 2026
MCP-native SDK, 500+ models, open source, extensible

⚔️ Comparisons

Claude Code vs Cursor 2026
Full comparison with radar chart, benchmarks, and verdict
Claude Code vs Codex
Anthropic's agent vs OpenAI — architecture and pricing compared
Aider vs Cline
Two leading open-source agents compared side by side
Architecture Radar Tool
Interactive spider chart for any two agents

💡 Buying Guides

Top 10 AI Coding Agents 2026
Ranked by architecture score with pricing and best-use cases
Best Free AI Coding Agents 2026
7 open-source agents that cost nothing — only LLM API fees
AI Coding Agent Pricing Guide 2026
Subscriptions, LLM costs, and total monthly cost comparison
How to Choose an AI Coding Agent
Step-by-step framework: architecture, LLM, cost, workflow fit

📐 Reference

Architecture Rubric
7-dimension scoring methodology with agent scores
Scoring Methodology
SWE-bench + Terminal-Bench + architecture combined formula