OPENAI'S MOST ADVANCED MODEL CAN NOW BE CUSTOMIZED. HERE'S HOW

Summary from the TLDR newsletter

OpenAI's GPT-4o and GPT-4o mini can now be fine-tuned and customized by developers for business use. Developers can now use their own datasets to enhance the model's knowledge base with proprietary information and control how the model responds to specific questions. It costs $25 for every 1 million tokens used to fine-tune GPT-4o - $3 for GPT-4o mini. 1 million tokens is roughly equivalent to 2,500 pages in a standard-size book.