What is GitHub Copilot Enterprise and how does it differ from individual?

Copilot Enterprise ($39/user/month) adds organization-wide codebase indexing so the AI understands your private repositories, custom model fine-tuning on your code style, Copilot code review in pull requests, and enhanced admin controls for security and compliance. Individual ($10/month) is great for solo developers but lacks the cross-repository context that makes Enterprise valuable for large teams.