Comparisons anchored on Guardrails AI, the Apache-2.0 library of input and output validators and structured output, and how it is deployed.
Running validators inside the application against a dedicated FastAPI Guardrails server: client image size, per-worker model memory, independent scaling, remote validation and which validator types fit serverless hosting, from the Guardrails deploying guide.
Hub validators and Pydantic structured output against Meta's scanner pipeline for prompt injection, agent alignment and insecure code: which risks each blocks, how agents are covered, model downloads and licenses, and when to run both.
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