ChatGPT:
Suitable as a quick start to understanding the subject. It's the most visually appealing thanks to its numbered lists, making it ideal if you want to extract key points for a quick presentation, but it lacks technical depth.
Perplexity:
is characterized by accuracy and credibility. He is unique in not only mentioning the benefits but also addressing the "risks" (privacy and fairness), making his answer more balanced and objective. His use of sources makes him the best choice for research requiring documentation.
Gemini:
He seems more connected to the current reality (2026), describing artificial intelligence as a "driving force" rather than just an addition. His answer suggests a holistic view that links technology and lived reality with powerful language.