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Stop overpaying for AI APIs. This pydantic-ai + FastAPI template classifies each prompt by complexity and routes it to the cheapest model that can handle it — Claude for hard tasks, Groq for simple ones. Real-time cost tracking included. Works with Claude, GPT-4o, GPT-4o-mini, and Groq out of the box. Drop into any existing project in under 10 minutes. Full source, test suite, and setup walkthrough included.