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BeginnerArchitecture
What makes FastAPI faster than Flask or Django for AI APIs?
FastAPI is built on Starlette (ASGI) and uses async/await natively, allowing it to handle thousands of concurrent requests without blocking. Unlike Flask (WSGI, synchronous), FastAPI can call OpenAI, Pinecone, and PostgreSQL concurrently in a single request. Benchmarks show FastAPI handling 3–10x more requests per second than Flask for I/O-bound AI workloads.
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