Preheat the air fryer to 400°F (200°C).
In a small bowl, combine chili powder, ground cumin, smoked paprika, garlic powder, salt, and black pepper.
Pat the tilapia pieces dry with paper towels and place them in a medium bowl.
Drizzle olive oil over the tilapia and toss to coat evenly.
Sprinkle the spice mixture over the tilapia and toss again to evenly coat all pieces.
Place the seasoned tilapia pieces in a single layer in the air fryer basket. Cook for 10-12 minutes, flipping halfway through, until the fish is cooked through and flakes easily with a fork.
While the fish cooks, prepare the slaw by combining shredded green cabbage, shredded red cabbage, chopped cilantro, diced red onion, lime juice, and salt in a bowl. Toss well and set aside.
In a separate small bowl, whisk together Greek yogurt, mayonnaise, lime juice, honey, and hot sauce to make the creamy sauce.
Warm the corn tortillas in a dry skillet or microwave until pliable.
To assemble the tacos, place a few pieces of cooked tilapia on each tortilla, top with a spoonful of slaw, and drizzle with the creamy sauce.
Serve immediately and enjoy your air fryer tilapia fish tacos.