OpenAI has introduced fine-tuning capabilities for its latest model, `gpt-3.5-turbo-0125`, marking an advancement over previous iterations such as 0613 and 1106. This new model, described as the newest and cheapest, is designed to offer enhanced performance, with several sources including OpenAIDevs and OpenPipeAI highlighting its availability for users. The development has been met with positive feedback, indicating it surpasses the performance of its predecessors.