This open access book constitutes proceedings of the 4th International Conference on Bridging the Gap between AI and Reality, AISoLA 2026, which took place in Kos, Greece, in October 2026.

The proceedings contain 8 full papers, one full invited talk, and a track introduction. They focus on the following topics: AI assisted programming; digital humanities; approaches of using formal methods and ai in health care; models for trustworthy autonomous systems; responsible and trusted AI; safe autonomous vehicles; statistical model checking; verification and learning for assured autonomy; verification for neuro-symbolic artificial intelligence.