I think they threw it behind a login wall because it was getting hit so hard.

Original url: nanda.media.mit.edu/ai_report_2025.pdf

All instances of the link in public either reroute to the main NANDA page or have been replaced by the access form to request access to the research.

I think that lead author Aditya Challapally may still have an industry job and I wonder his employer (M$) objected.