Why Engineering Leaders Choose AI Agents Over AI Assistants
Research: Diffblue Cover vs. GitHub Copilot - Evaluating AI for Java Unit Testing at Scale
Get the full report comparing Diffblue Cover and GitHub Copilot across speed, coverage, accuracy, and scalability. See how autonomous AI reshapes testing in enterprise Java environments.

Copilot wasn’t built for Java unit testing at scale. Diffblue Cover was.
Download our in-depth comparison and discover how agentic AI delivers 4x the coverage, 10x more tests, and 26x the productivity – autonomously.
4x faster testing
26x unit test process productivity uplift
4x higher test coverage
Want to see the full picture?
In this free report, you'll get:
Access the exclusive benchmark report comparing GitHub Copilot and Diffblue Cover across real-world Java projects.
- Hard data on coverage achieved by Copilot vs. Cover in a real 20k-line codebase.
- Productivity insights on developer effort saved through automation.
- Everything you need to help justify AI-driven unit testing at scale