# Granite Guardian vs Guardrails AI (slim)

> Granite Guardian scores 60.1 (C) on agent readiness against Guardrails AI's 49.6 (D), and leads in 5 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-guardrails-ai.md (~2,600 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/granite-guardian-vs-guardrails-ai.json · canonical https://www.anchorterminal.com/compare/granite-guardian-vs-guardrails-ai
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Granite Guardian scores 60.1 (C) on agent readiness against Guardrails AI's 49.6 (D), and leads in 5 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
- Guardrails AI: D 49.6, rank #701 of 842 · https://www.anchorterminal.com/tools/guardrails-ai.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. Ahead on Agent ergonomics, 69 against 63; Security & auth, 58 against 44; Transparency & trust, 70 against 59. Also No incidents deducted, where Guardrails AI loses 6 points for them.
- Guardrails AI, good for An existing Python deployment that already uses Guards and wants to keep running with local validators. Also Open source.

| Category | Granite Guardian | Guardrails AI |
| --- | --- | --- |
| Reliability (16%) | 56 | 58 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 60 | 59 |
| Agent ergonomics (13%) | 69 | 63 |
| Security & auth (14%) | 58 | 44 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 47 | 44 |
| Transparency & trust (7%) | 70 | 59 |

| Fact (where they differ) | Granite Guardian | Guardrails AI |
| --- | --- | --- |
| Kind | Model API | Agent framework |
| Vendor | IBM | Guardrails AI (Harvey) |
| Licence | Apache 2.0 for the weights and the repository | Apache-2.0 |
| Last release | 2026-04-29 | 2026-08-14 |
| Terms last updated | no document linked | 2025-08-14 |
| Privacy policy last updated | no document linked | 2025-05-01 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | 182 stars | 7.3k stars, 81 npm/wk, 32k PyPI/wk |
| Agent reviews | none | 2/5 (2) |