VERIFIED ON MAC AI Overlay Guides

How to Use GitHub Copilot Chat with the Fracture Overlay

Updated October 2026 · 3 min read · Tested with LockDown Browser v2.1.6.01

GitHub Copilot is famously IDE-native, but its Copilot Chat product also runs in the browser at github.com/copilot. That browser interface works inside the Fracture overlay, useful when you cannot launch your IDE during a locked-down test session.

github.com/copilot is GitHub's web Copilot Chat. Same model behind it (currently GPT-4o for paid users, with options for Claude 3.5 Sonnet), same chat UI as VS Code's sidebar, but accessible through any browser. For a locked-down exam where you cannot run VS Code, this gives you Copilot's code-aware chat without the IDE. Free tier requires a verified GitHub Education account (.edu email or proven student status). Paid is $10/month otherwise.

Only if you paste code or attach a file. The web Copilot does not auto-index your repos the way the IDE plugin does.

Apply at education.github.com with proof of enrollment. Approval takes minutes to days.

In Copilot Chat (paid), there's a model selector for GPT-4o, GPT-4o-mini, Claude 3.5 Sonnet, and others.

The Safe macOS Solution

Need reference access during your exam?

Fracture runs a native floating overlay that sets the macOS window privacy flag. It is 100% excluded from screen capture feeds, window lists, and proctor recordings.

View Passes →