- Classical AI is a Robust, cheap, vast ecosystem (PyTorch, TensorFlow), explainable (with effort). Limitations: Hits exponential walls on combinatorial problems; energy-hungry at planetary scale. - Quantum AI Unlocks previously intractable problems. Secure AI (quantum-resistant cryptography). Enables hyper-personalized models from smaller datasets. Hardware fragility (decoherence), high cost, limited qubits, error rates, and the need for cryogenic or trapped-ion environments.