How much does the good AI cost?

I'm curious to know, how much does the cost of a high-quality AI typically run? Is it a significant investment, or is it within reach for a variety of businesses and individuals? Considering the rapid advancements in AI technology, are there any cost-effective options that still deliver impressive results? Additionally, what factors typically influence the pricing of AI solutions, and how can one ensure they're getting the best value for their money?