This is where it gets tricky and why the price is higher. By default, Enterprise can use your data to train models, but you must to this. If you do not opt-in, your data is still used to create the embeddings for the Knowledge Base (so the AI can search your code), but it is not used to train the global model.

For organizations using GitHub, the decision often boils down to a confusing crossroads: vs. Copilot Enterprise .

The primary limitation is . If you are working in a monorepo with complex internal dependencies, Copilot for Business will often hallucinate imports or suggest functions that don't exist in your codebase. It is guessing based on probability, not retrieval. You will frequently find yourself copying code into the Chat window to give it context, which disrupts flow.