What is the Difference between a demigod and hero in greek mythology?

In Greek mythology, a demigod is typically the offspring of a god and a mortal, possessing some divine qualities or powers, such as Hercules, who is known for his exceptional strength. A hero, on the other hand, is often a mortal who performs extraordinary feats, exhibits bravery, and embodies the values of their culture, such as Achilles or Odysseus. While many heroes can be demigods, not all heroes possess divine ancestry; their greatness often stems from their actions and character rather than their lineage.