Opus 4.8: Native macOS App for Improving Writing

New AI model, new app. This tutorial uses Claude Opus 4.8 (just released) to create a native macOS writing tool.

What the app does:

• Accepts text input from the user
• Sends it to Opus 4.8 via API
• Returns writing improvements, style suggestions, and summaries
• Runs as a proper native macOS SwiftUI app

What you'll see:

• Integrating Opus 4.8 API into a Mac app
• Handling streaming responses
• Building a clean writing-focused UI
• Source code available to download and modify

Perfect for macOS developers who want to ship AI-powered tools without building from scratch.