One API Key for GPT, Claude, Gemini, and Qwen: A Practical Guide to OpenAI-Compatible Model Routing

Developers often struggle to manage multiple large language model (LLM) APIs, leading to a cumbersome setup with various SDKs, environment variables, and billing dashboards. This article outlines a streamlined approach using a single API key to route requests to different models like GPT, Claude, Gemini, and Qwen based on specific tasks. By adopting this method, developers can avoid the complexity and costs associated with juggling multiple provider-specific configurations, making it a valuable solution for efficient and cost-effective AI integration.