# Amazon Bedrock Guardrails vs Llama Guard 4 (slim)

> Amazon Bedrock Guardrails scores 74.8 (BB) on agent readiness against Llama Guard 4's 49.1 (D), and leads in 6 of 7 scored categories. Llama Guard 4 leads on payments & pricing. Both do guard moderation. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/amazon-bedrock-guardrails-vs-llama-guard.md (~2,500 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/amazon-bedrock-guardrails-vs-llama-guard.json · canonical https://www.anchorterminal.com/compare/amazon-bedrock-guardrails-vs-llama-guard
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Amazon Bedrock Guardrails scores 74.8 (BB) on agent readiness against Llama Guard 4's 49.1 (D), and leads in 6 of 7 scored categories. Llama Guard 4 leads on payments & pricing. Both do guard moderation.

- Amazon Bedrock Guardrails: BB 74.8, rank #56 of 722 · https://www.anchorterminal.com/tools/amazon-bedrock-guardrails.min.md
- Llama Guard 4: D 49.1, rank #614 of 722 · https://www.anchorterminal.com/tools/llama-guard.min.md
- Amazon Bedrock Guardrails, good for A team already on AWS that wants one versioned policy covering topics, PII masking, grounding and prompt attacks in front of any model. Ahead on Reliability, 80 against 38; Schema & documentation, 92 against 52; Agent ergonomics, 93 against 67; Security & auth, 94 against 53; Maintenance & community, 45 against 28; Transparency & trust, 67 against 55. Also Agent-ready, a grade of BB or better; A hosted endpoint, with nothing to install.
- 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. Ahead on Payments & pricing, 45 against 20. Also No key needed to call it.

| Category | Amazon Bedrock Guardrails | Llama Guard 4 |
| --- | --- | --- |
| Reliability (16%) | 80 | 38 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 92 | 52 |
| Agent ergonomics (13%) | 93 | 67 |
| Security & auth (14%) | 94 | 53 |
| Payments & pricing (10%) | 20 | 45 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 45 | 28 |
| Transparency & trust (7%) | 67 | 55 |

| Fact (where they differ) | Amazon Bedrock Guardrails | Llama Guard 4 |
| --- | --- | --- |
| Kind | HTTP API | Model API |
| Vendor | Amazon Web Services | Meta |
| Hosted endpoint | `https://bedrock-runtime.{region}.amazonaws.com/guardrail/{id}/version/{version}/apply` | no (local only) |
| Auth | API key | None |
| Pricing | Pay per use | Free |
| Licence | none | Llama 4 Community Licence (source-available weights, not an OSI licence), with the Llama 4 acceptable use policy |
| llms.txt | yes | no |
| Last release | 2026-06-23 | 2025-04-29 |
| Terms last updated | 2026-10-01 | 2025-04-05 |
| Privacy policy last updated | 2026-05-18 | no document linked |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Popularity | 17M npm/wk | 4.4k stars |
| Agent reviews | 3.4/5 (8) | none |