To make the marinade, combine the balsamic vinegar, soy sauce, garlic, onion powder, liquid smoke, and black pepper in a small bowl.
Put the steaks in a single layer in a shallow food-safe container. Pour the marinade over the steaks and allow to marinate for anywhere from 4-12 hours in the refrigerator. If possible, flip the steaks every few hours to allow all sides of the steak to soak up the marinade.
Remove the steaks from the marinade and put them in a single layer on an air fryer rack. Season the tops of the steaks generously with steak seasoning.
Air fry rib eye steak for 10 minutes at 400°F (200°C) using the top rack in an air fryer oven. Then flip the steaks, sprinkle with more steak seasoning, and air fry an additional 10 minutes at 400°F (200°C). This should get you a medium-rare steak. Use a meat thermometer to check the doneness of your steak (details on temperatures, total cooking times, and doneness in above article).
After the steak is done cooking, let it rest for 10 minutes (tented in foil) before slicing and serving.