C++ is the fastest computer language, its speed is appreciated for AI programming projects that are time sensitive. It provides faster execution and has less response time which is applied in search engines and development of computer games. In addition, C++ allows extensive use of algorithms and is efficient in using statistical AI techniques. Another important factor is that C++ supports re-use of programs in development due to inheritance and data-hiding thus efficient in time and cost saving. C++ is appropriate for machine learning and neural network.