It is difficult to provide an accurate answer to this question as the number of people who escaped the Twin Towers during the 9/11 attacks is not a definitive figure. However, I can provide some information that may help you understand the scale of the evacuation and the number of survivors.
According to official estimates, there were approximately 17,400 people in the World Trade Center complex at the time of the attacks. This includes office workers, visitors, and first responders. It is estimated that around 2,606 people died in the attacks, including those who were inside the Twin Towers and those who were in the surrounding area.
As for the number of people who escaped, it is difficult to provide a precise figure. Many people were able to evacuate the buildings before they collapsed, while others were rescued by emergency responders. However, there were also many people who were trapped or unable to escape, and ultimately lost their lives.
Overall, the evacuation of the Twin Towers was a massive and chaotic effort, and many people risked their lives to help others escape. While we may never know the exact number of people who escaped, we can honor the bravery and sacrifice of all those who were involved in the response to the attacks.