Fireworks has introduced f1, a compound AI model designed to excel in complex reasoning by integrating multiple open models at the inference layer, offering a new standard in this domain. Unlike traditional single models, f1 simplifies the process of building compound AI systems by using prompting as a universal declarative programming language, allowing developers to specify desired outcomes without detailing the process. This approach aims to make compound AI as accessible as model prompting, and f1 has already demonstrated superior capabilities in diverse areas such as coding, math, and logic puzzles. Available in its preview version along with a smaller variant, f1-mini, on the Fireworks AI Playground, the model invites early access applications for its API and design partnerships to further refine and expand its capabilities.