OpenAI has launched ChatGPT Pro at a price of $200 per month, planning to introduce a new model called 'Strawberry' within two weeks. Its core feature mimics the human thought process, generating accurate content through a 'thinking' period of 10 to 20 seconds and information retrieval, focusing solely on text processing and currently not supporting image and audio processing. The 'Strawberry' model employs innovative optimization strategies, including a dense verification reward model and dynamic adjustments to answer quality, aimed at enhancing the performance of large language models and overcoming limitations in training datasets and reasoning computational resources.