A History of the Future, 2025-2027 is an extended scenario describing how the future might unfold based on current trends in AI. The scenario goes into detailed specifics, discussing the return of reinforcement learning and the advancements made in AI from 2019 to 2027. It explores the developments in AI models, such as the release of o1 and GPT o5 by OpenAI, as well as the advancements made by DeepSeek and Anthropic. The scenario delves into the challenges and opportunities in AI research and development, highlighting the focus on intelligence over product and enterprise products over consumer products. Overall, A History of the Future, 2025-2027 provides a thought-provoking look into the potential future of AI technology.