AI Solves 56% of Complex Coding Projects: MirrorCode

A new benchmark shows AI can now solve complex coding projects that would take humans weeks to complete. Claude Opus 4.7, a leading AI model, successfully reconstructed entire software projects without seeing the source code or needing human help. What's interesting is this AI model solved 56% of 25 programming tasks on the MirrorCode benchmark. This included a 16,000-line bioinformatics toolkit. Experts estimate a skilled human would need 2 to 17 weeks to rebuild this same toolkit. This benchmark is different because the AI only receives a compiled program, documentation, and input-output examples. It can't see the source code or access the internet. This ensures the AI isn't just memorizing solutions. The bottom line is that AI agents are now demonstrating goal-directed software development across tasks previously thought to require much longer human effort. This could significantly change how software is developed.