No AI agent scores above 12 percent on SemiAnalysis' new real-world work benchmark Manuel Uth Nov 5, 2026 Nano Banana Pro prompted by THE DECODER Key Points Analytics firm SemiAnalysis has released GDPx, a benchmark that tests AI agents on 206 tasks in realistic work environments and professional software over several hours. The scores are low. Claude Opus 5.5 leads the field with just 12 percent, followed by Google's significantly cheaper Gemini 4 Carbon