The molecular formula for benzoic acid is C7H6O2, so Google AI is being asked to compile the following equation and solve for x 7x + (6 × 1) + (2 × -2) = 0 x = -2/7 Well within Google AI’s capabilities one would think. But when I put this question to Google’s Gemini chatbot on 11 October 2025, it responded in the first instance with -1/3, then corrected it to -3/7, both wrong answers. I asked again and it gave a new incorrect answer of -1/7. I asked one more time the next day and it returned to.