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Guardrails AI

  • Open source (Apache-2.0)
  • 7.4k

Verified Sep 2026

Validated LLM outputs

Framework that validates, corrects and guarantees the structure of model outputs with reusable guards.

The framework for validating LLM outputs: named Guards (PII checks, schema validation, toxicity) that validate/correct/retry model responses in Python. Open-source core with a hub of community guards

Who it's for

Python teams that want validated, structured LLM outputs with retries and guardrails in production.

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