Vitellia feels terrible about what has happened and decides to tell all the truth to Titus, giving up her hopes of empire. In the amphitheater, the condemned (including Sextus) are waiting to be thrown to the wild animals. Titus is about to show mercy when Vitellia explains that she started Sextus's plot. Though shocked, the emperor includes her in the general clemency (forgiveness) he offers. The opera finishes with all the people praising the kindness of Titus, while he himself asks the gods to end his life if he ever stops caring for the good of Rome.