Echo - Dynamic AI system combining open-weight models for cost efficiency

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

Echo is an innovative AI system that dynamically orchestrates a pool of open-weight models, including GLM-5.2 and Kimi K2.7, to solve tasks more effectively than any single model. Instead of relying on one model for every request, Echo intelligently decides which models to use and how to combine their outputs based on the specific problem. This approach achieves performance comparable to Fable while reducing inference costs by roughly two-thirds. Users can test the system via a chat interface or an OpenAI-compatible API, making advanced multi-model reasoning accessible and affordable for developers and researchers alike.