Show HN: LetThemBuild – Claude Code, Codex, Gemini and OpenRouter in Parallel (letthembuild.com)

A new GitHub project, LetThemBuild, showcases an innovative approach to integrating multiple AI systems, including Claude, Codex, Gemini, and OpenRouter, operating in parallel. The project focuses on implementing rate limiting for the upload endpoint to ensure stability and reliability. Key contributors tested and revised the middleware, resulting in multiple iterations to refine the rate limiting process. They shifted from a per-second count to a more effective approach that counts requests over defined windows, successfully passing all unit and integration tests. This development is significant for the AI/ML community as it highlights collaborative efforts to enhance the functionality and responsiveness of AI applications. The challenge of handling bursts of requests underlines the complexities of real-time AI interactions and sets a precedent for future projects. By proving the effectiveness of the rate limiting middleware, LetThemBuild paves the way for stronger, more resilient integrations of various AI models, which is crucial as applications increasingly demand seamless and robust user experiences.