Artificial intelligence (AI) is in full development, and advances are already used in many fields, including medicine. In oncology, these tools can identify a tumor in an image with 99% accuracy. But they can also miss it if the algorithm was not developed with the right data or the correct decisions. The 2023 European Society for Medical Oncology (ESMO) Congress brought together in Madrid doctors and deep learning experts to discuss the challenges and advances of AI in this area. And what’s better than asking an AI what its trainer has told it about AI?