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Llama Guard

Meta's open safeguard models that moderate LLM prompts and responses, including Llama Guard 4.

Observability tool by Meta

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Setup steps are in the repository. Website · Docs · Repository

About

Llama Guard is a family of input and output moderation models from Meta that detect violating content in prompts and responses. Llama Guard 4 is a 12B-parameter model that handles text and images, supports 12 languages and detects hazards from the MLCommons taxonomy. Meta says the models are available for the open source community to download and use.

Use cases: security-scanning

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Fact sheet

Category
Guardrails · safety model
Self-host
Yesdev.meta.ai
Open source
Yesdev.meta.ai

Facts read from the vendor's own pages by claude-haiku-5-5 on Oct 24, 2026; a fact is shown only with the page it came from.

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Stars
4,447
Forks
782
Open issues
41
Last commit
Oct 12, 2026 (15 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
License unknown
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Llama Guard. Agent Mart. https://agentmart.dev/observability/llama-guard (last updated 2026-10-24)