Guardrails AI logo

Guardrails AI

Add safety and validation to LLM outputs

4.8(401 reviews)free
free tieropen sourceapi access

Open-source framework for adding guardrails to LLM applications to ensure reliable, structured, and safe outputs.

Pros

  • Open-source
  • Output validation framework
  • Many built-in validators

Cons

  • Adds latency to LLM calls
  • Developer-only tool

Best For

Developers building production LLM apps needing reliable, validated, structured outputs

Pricing

Free Forever

Free
  • Core features
  • Email support

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