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AI Coding Tools Compared: ChatGPT, Claude, Copilot, Cursor, Lovable and AI Agents

July 21, 2025 Alexey Grigorev
ai-tools coding-assistants comparison developer-tools ai-agents

We compare AI coding tools by asking each to help build the same small app, Snake in React. We compare the tools rather than ship one polished build. The walkthrough follows the tool categories, moving from chat applications to coding assistants and IDEs, then to project bootstrappers and agents.

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The main resources:

The comparison

The same app appears in several workflows:

flowchart LR PROMPT["Prompt implement snake in react"] CHAT["Chat apps ChatGPT, Claude, DeepSeek, Ernie, Microsoft Copilot"] IDE["Coding assistants and IDEs Claude Code, GitHub Copilot, Cursor, Pear"] BOOT["Project bootstrappers Bolt, Lovable"] AGENTS["Agents tools, file access, computer use"] CHATAPP["Local app snake-chatgpt"] CLAUDEAPP["Local app snake-claude-code"] PREVIEW["Hosted app Lovable preview"] PROMPT --> CHAT CHAT --> CHATAPP IDE --> CLAUDEAPP BOOT --> PREVIEW AGENTS --> IDE AGENTS --> BOOT

We build two Vite React projects. snake-chatgpt keeps the game in one component, so it shows what a chat app can produce from a short prompt.

snake-claude-code splits the page shell from the game component. It adds a score and a start-and-restart flow, plus WASD controls and a walls-versus-pass-through mode.

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Tutorial pages

  1. Overview and setup
  2. Part 1: Chat apps
  3. Part 1 continued: ChatGPT Snake code
  4. Part 2: Coding assistants and IDEs
  5. Part 2 continued: Claude Code Snake app
  6. Part 3: Project bootstrappers
  7. Part 4: Agents and computer use
  8. Deferred items
  9. Appendix: file inventory
  10. Q&A

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