# Granite Guardian vs OpenAI Guardrails (slim)

> OpenAI Guardrails scores 69.5 (B) on agent readiness against Granite Guardian's 60.1 (C), 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/granite-guardian-vs-openai-guardrails.md (~2,650 tokens) · this version ~530 tokens · JSON https://www.anchorterminal.com/compare/granite-guardian-vs-openai-guardrails.json · canonical https://www.anchorterminal.com/compare/granite-guardian-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 Granite Guardian's 60.1 (C), and leads in 6 of 7 scored categories. Both do guard moderation.

- Granite Guardian: C 60.1, rank #478 of 842 · https://www.anchorterminal.com/tools/granite-guardian.min.md
- OpenAI Guardrails: B 69.5, rank #175 of 842 · https://www.anchorterminal.com/tools/openai-guardrails.min.md
- Granite Guardian, good for A team with a GPU that wants one English-language judge for harm, jailbreaks, RAG groundedness, function-call checks and house rules, under a permissive licence with no gate. 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 56; Schema & documentation, 66 against 60; Maintenance & community, 89 against 47; Transparency & trust, 76 against 70. Also Open source.

| Category | Granite Guardian | OpenAI Guardrails |
| --- | --- | --- |
| Reliability (16%) | 56 | 73 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 60 | 66 |
| Agent ergonomics (13%) | 69 | 73 |
| Security & auth (14%) | 58 | 59 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 47 | 89 |
| Transparency & trust (7%) | 70 | 76 |

| Fact (where they differ) | Granite Guardian | OpenAI Guardrails |
| --- | --- | --- |
| Kind | Model API | Agent framework |
| Vendor | IBM | OpenAI |
| Auth | None | API key |
| Licence | Apache 2.0 for the weights and the repository | MIT |
| Last release | 2026-04-29 | 2026-09-10 |
| Popularity | 182 stars | 259 stars, 19k npm/wk, 105k PyPI/wk |