Both are open source security options with comparable terms, so the choice comes down to which model of the problem you prefer — compare the descriptions below rather than the licence.
Open-weight classifier for input and output safety. Runs wherever you run it.
Cheap first line: classify the user turn before it reaches the expensive model.
Declarative input/output validators with a hub of prebuilt checks.
| Llama Guard | Guardrails AI | |
|---|---|---|
| Licence | Open source | Open source |
| Pricing | open source | open source |
| Self-hostable | Yes | Yes |
| Languages | Python | Python |
| Install | — | pip install guardrails-ai |
| Keys required | None | None |
| Job within the layer | content | content |
Both are open source security options with comparable terms, so the choice comes down to which model of the problem you prefer — compare the descriptions below rather than the licence. Llama Guard: Open-weight classifier for input and output safety. Runs wherever you run it. Guardrails AI: Declarative input/output validators with a hub of prebuilt checks.
Llama Guard can run on your own infrastructure. Guardrails AI can run on your own infrastructure.
Llama Guard is open source (open source). Guardrails AI is open source (open source).
Every page here answers to Accept: text/markdown and returns the same content at roughly a tenth the tokens. No separate site, no toggle — same URL.
curl -s -H "Accept: text/markdown" https://newagent.build/compare/llama-guard-vs-guardrails-ai