Trajectory serves as an innovative platform dedicated to ongoing learning, designed to transform actual product interactions into AI that perpetually enhances itself. By interpreting every modification, retry, correction, re-prompt, and user approval as valuable data, it enables each product to evolve into a dynamic system. User actions provide a more precise reflection of task success than any traditional benchmark could offer, and Trajectory equips teams with a creative framework to observe, guide, and refine the intelligence that powers their product. Featuring a streamlined SDK, it allows teams to easily integrate Trajectory into their AI applications, efficiently capturing the signals that users naturally produce, such as edits, corrections, and re-prompts. This functionality assists teams in comprehending the learning journey of the model, directing it towards essential goals, and confidently implementing updates. Trajectory is particularly beneficial in contexts where model behavior varies significantly across different environments, positioning steerability as a fundamental operational necessity rather than merely an academic pursuit. Ultimately, the platform empowers teams to adapt and thrive in rapidly changing landscapes.