I asked GPT-5, GPT-5 Pro, GPT-5 Thinking, and o3 to analyze my code repository - and found surprising differences in detail, reasoning, and actionable insights that could change how you work.

GitHub Copilot Pro now supports GPT-5 in VS Code. A 30-day trial lets you test premium models for free. Add your OpenAI key to bypass Copilot restriction. First, open VS Code. Click the little Copilot ...