# LlamaFirewall vs OpenAI Guardrails (slim)

> OpenAI Guardrails scores 69.5 (B) on agent readiness against LlamaFirewall's 50.8 (D), and leads in every scored category. Both do guard injection. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/llamafirewall-vs-openai-guardrails.md (~2,600 tokens) · this version ~530 tokens · JSON https://www.anchorterminal.com/compare/llamafirewall-vs-openai-guardrails.json · canonical https://www.anchorterminal.com/compare/llamafirewall-vs-openai-guardrails
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

OpenAI Guardrails scores 69.5 (B) on agent readiness against LlamaFirewall's 50.8 (D), and leads in every scored category. Both do guard injection.

- LlamaFirewall: D 50.8, rank #682 of 842 · https://www.anchorterminal.com/tools/llamafirewall.min.md
- OpenAI Guardrails: B 69.5, rank #175 of 842 · https://www.anchorterminal.com/tools/openai-guardrails.min.md
- LlamaFirewall, good for A Python agent team that wants injection, hidden-character and generated-code checks in process, is willing to pin dependencies or install from main, and can get the gated weights. Also No key needed to call it.
- OpenAI Guardrails, good for Teams already on the OpenAI client or Agents SDK that want several checks from one config file with little code. Ahead on Reliability, 73 against 53; Schema & documentation, 66 against 49; Agent ergonomics, 73 against 60; Payments & pricing, 60 against 50; Maintenance & community, 89 against 15; Transparency & trust, 76 against 58.

| Category | LlamaFirewall | OpenAI Guardrails |
| --- | --- | --- |
| Reliability (16%) | 53 | 73 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 49 | 66 |
| Agent ergonomics (13%) | 60 | 73 |
| Security & auth (14%) | 56 | 59 |
| Payments & pricing (10%) | 50 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 15 | 89 |
| Transparency & trust (7%) | 58 | 76 |

| Fact (where they differ) | LlamaFirewall | OpenAI Guardrails |
| --- | --- | --- |
| Vendor | Meta | OpenAI |
| Transports |  | HTTP |
| Auth | None | API key |
| Licence | MIT (library). The Prompt Guard 2 weights it downloads are under the Llama 4 Community Licence | MIT |
| Last release | 2025-05-29 | 2026-09-10 |
| Popularity | 4.4k stars, 1k PyPI/wk | 259 stars, 19k npm/wk, 105k PyPI/wk |