OpenAI is developing its next-generation o1 reasoning model, potentially named o3, after considering trademark conflicts with O2.During the '12 Days of OpenAI', the company released the full version of the o1 model and upgraded the API with additional features.Google recently released Gemini 2.0 Flash Thinking, a model with advanced reasoning capabilities and transparency in AI problem-solving.OpenAI is expected to make an announcement soon to conclude the '12 Days of OpenAI' event.