Preheat the air fryer to 400°F (200°C).
Place the chopped chicken, broccoli, cauliflower, zucchini, red bell pepper, and red onion in a large mixing bowl.
Add minced garlic, olive oil, balsamic vinegar, garlic powder, onion powder, smoked paprika, chili powder, dried basil, and salt and pepper; toss until everything is evenly coated.
Arrange the chicken and vegetables in a single layer in the air fryer basket; avoid overcrowding. Cook in batches if needed.
Air fry at 400°F for 10–15 minutes, shaking or tossing the basket halfway through, until vegetables are charred in spots and chicken is cooked through and browned.
Remove from the air fryer and serve immediately, for example with rice or noodles if desired.