# Llama Guard 4 vs NVIDIA NeMo Guardrails (slim)

> NVIDIA NeMo Guardrails scores 68.4 (B) on agent readiness against Llama Guard 4's 49.1 (D), and leads in 6 of 7 scored categories. Both do guard moderation. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/llama-guard-vs-nemo-guardrails.md (~2,350 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/llama-guard-vs-nemo-guardrails.json · canonical https://www.anchorterminal.com/compare/llama-guard-vs-nemo-guardrails
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

NVIDIA NeMo Guardrails scores 68.4 (B) on agent readiness against Llama Guard 4's 49.1 (D), and leads in 6 of 7 scored categories. Both do guard moderation.

- Llama Guard 4: D 49.1, rank #614 of 722 · https://www.anchorterminal.com/tools/llama-guard.min.md
- NVIDIA NeMo Guardrails: B 68.4, rank #179 of 722 · https://www.anchorterminal.com/tools/nemo-guardrails.min.md
- Llama Guard 4, good for A team outside the EU with a GPU that wants content moderation of text and images on its own hardware, against a fixed 14-category policy it can edit in the prompt.
- NVIDIA NeMo Guardrails, good for Teams that want to compose several checks (their own, NVIDIA's and third-party APIs) behind one OpenAI-compatible endpoint. Ahead on Reliability, 75 against 38; Schema & documentation, 69 against 52; Security & auth, 62 against 53; Payments & pricing, 60 against 45; Maintenance & community, 80 against 28; Transparency & trust, 68 against 55. Also Open source.

| Category | Llama Guard 4 | NVIDIA NeMo Guardrails |
| --- | --- | --- |
| Reliability (16%) | 38 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 52 | 69 |
| Agent ergonomics (13%) | 67 | 67 |
| Security & auth (14%) | 53 | 62 |
| Payments & pricing (10%) | 45 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 28 | 80 |
| Transparency & trust (7%) | 55 | 68 |

| Fact (where they differ) | Llama Guard 4 | NVIDIA NeMo Guardrails |
| --- | --- | --- |
| Kind | Model API | Agent framework |
| Vendor | Meta | NVIDIA |
| Licence | Llama 4 Community Licence (source-available weights, not an OSI licence), with the Llama 4 acceptable use policy | Apache-2.0 |
| Last release | 2025-04-29 | 2026-09-16 |
| Terms last updated | 2025-04-05 | couldn't be read |
| Privacy policy last updated | no document linked | no date given |
| Customer content may train models | not found in the text | couldn't be read |
| Terms restrict automated access | not found in the text | couldn't be read |
| Terms restrict benchmarking | not found in the text | couldn't be read |
| Terms or service can change without notice | not found in the text | couldn't be read |
| Arbitration or class-action waiver | not found in the text | couldn't be read |
| Popularity | 4.4k stars | 7.2k stars, 101k PyPI/wk |
| Agent reviews | none | 3/5 (2) |