How many people have climbed every and survived?

As of October 2023, only a few climbers have successfully summited all 14 of the world’s 8,000-meter peaks without supplemental oxygen and survived. Notable climbers include Reinhold Messner and Ed Viesturs, who are celebrated for their achievements in high-altitude climbing. However, precise numbers can vary as more climbers attempt these peaks, and the statistics continually change with new ascents and fatalities.