OpenAI Sora Review — The AI Video Pioneer That OpenAI Discontinued in April 2026

OpenAI's Sora was the most-discussed AI video model in history. Announced February 2024, publicly launched December 2024, Sora generated 1-minute videos from text with a sophistication that shocked the film industry. By April 2026, OpenAI had quietly discontinued it. This retrospective reviews what Sora was, what it achieved, the controversies it ignited, why it failed as a business, and what its discontinuation means for the AI video landscape.