Show HN: Echo – Fable-level results at 1/3 the cost using open-weight models

Echo is an AI system that combines multiple open-weight models to achieve better results at a lower cost. It dynamically allocates computation and combines model outputs based on the task. Initial results show Echo outperforming individual models and matching Fable's results at 1/3 the cost. However, it still struggles with certain cases and requires further testing and refinement.