Claude CodeをVS Codeで使う方法 - ChatGPT・Geminiとの違いと導入手順A practical guide explaining how to set up Claude Code in VS Code and how it…

Choosing an AI coding assistant has become a common source of confusion for developers, who often hear about ChatGPT and Gemini without a clear sense of which tool actually fits their workflow. A recent guide on the Qiita blog aims to answer that question by focusing on Claude Code inside Visual Studio Code, describing the pairing as the leading option for coding assistance as of July 2026 and walking readers through installation and configuration.

Claude Code is Anthropic's agentic coding tool, built around its Claude family of large language models. Unlike a general chat interface, it is designed to operate within a developer's project, reading files, proposing edits, running commands, and iterating on tasks with a degree of autonomy. The guide's central premise is that integrating this capability directly into VS Code — the editor many developers already use daily — lowers the barrier to adopting AI assistance, since it removes the need to copy code back and forth between a browser and an editor.

The comparison with ChatGPT and Gemini is a recurring theme. ChatGPT, from OpenAI, and Gemini, from Google, are both broadly capable assistants that many developers first encounter through web or mobile chat. The article frames the practical difference as one of context and integration: whereas chat-based tools typically require pasting snippets and manually applying suggested changes, an editor-integrated agent like Claude Code can work against the full repository, which appears to suit multi-file changes and larger refactoring tasks. It is worth noting that both ChatGPT and Gemini also offer their own IDE integrations and coding-focused modes, so the distinction is less about capability in the abstract and more about how each tool is packaged and used.

On setup, the guide follows the familiar pattern for adding Claude Code to VS Code. That generally involves installing the relevant extension or command-line tool, authenticating with an Anthropic account, and granting the assistant permission to access the working project. Because Claude Code interacts with the file system and can execute commands, the article is likely to emphasize reviewing suggested changes before accepting them and understanding what the tool is permitted to do. Developers new to these agents should treat generated code as a draft to be verified rather than a finished result.

Some background helps explain why this space is crowded. The most established editor-based assistant is GitHub Copilot, which popularized inline code completion and has since expanded into chat and agent-style features. Anthropic, OpenAI, and Google have all pushed toward more autonomous "agentic" workflows, in which the assistant plans and carries out multi-step tasks rather than simply completing the next line. Claude Code sits within this trend, and its availability inside VS Code reflects a broader industry move to meet developers in the tools they already use rather than in standalone applications.

Cost and access are practical considerations the guide implicitly raises. AI coding tools are commonly offered through subscription plans or usage-based API billing, and the specifics can change quickly, so readers are advised to confirm current terms directly with each provider. The article's "as of July 2026" framing is a useful reminder that recommendations in this fast-moving category have a short shelf life; a tool positioned as the top choice today may be reassessed as competitors update their models and pricing.

For the target audience — developers who feel that AI setup "looks difficult" — the guide's value appears to lie in reducing that friction. By concentrating on a single, concrete pairing of Claude Code and VS Code and explaining it step by step, it offers a starting point rather than an exhaustive benchmark. Anyone evaluating options may still benefit from trying more than one assistant, since the best fit depends on language, project size, and personal workflow. Still, for a reader who simply wants a defensible default to begin with, the article makes a clear case for Claude Code in VS Code and provides the practical steps to get running.