OpenAI 12 Days — Sora for All, o3-mini Preview, ChatGPT Pro at $200/mo

OpenAI ran a twelve-day product announcement event in December, releasing something new every single day. The biggest moments included making Sora — their AI video generator — available to all ChatGPT Plus subscribers, not just a small waitlist. They unveiled a preview of o3-mini, a cheaper and faster reasoning model. They launched Projects, a system that gives ChatGPT long-term memory organized by topic so it remembers context across many conversations. They also introduced ChatGPT Pro, a 200 dollar per month premium tier giving unlimited access to their most powerful models including o1 Pro mode. They announced operator integrations that let ChatGPT take actions in third-party apps. The event was a marketing masterstroke — twelve days of news headlines kept OpenAI at the center of attention through the holiday season, while competitors scrambled to respond.