How much does GPT-4 cost?

As a professional practitioner in the realm of cryptocurrency and finance, I'm curious about the pricing structure of GPT-4, the latest iteration of the renowned language model from OpenAI. With its enhanced capabilities and potential to revolutionize various industries, I'm eager to understand the cost implications for businesses and individuals alike. Could you elaborate on the pricing tiers offered for GPT-4? Are there any free or discounted options for early adopters or academic institutions? Additionally, I'm interested in knowing if there are any hidden costs or recurring fees associated with using GPT-4. Clarifying these points would help me make an informed decision regarding its integration into my financial portfolio or enterprise strategy.