# Granite Guardian vs Mistral Moderation API (slim)

> Granite Guardian scores 60.1 (C) on agent readiness against Mistral Moderation API's 58.4 (C), and leads in 4 of 7 scored categories. Mistral Moderation API leads on schema & documentation, agent ergonomics and transparency & trust. Both do guard moderation. Category scores…

- Full: https://www.anchorterminal.com/compare/granite-guardian-vs-mistral-moderation.md (~2,750 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/granite-guardian-vs-mistral-moderation.json · canonical https://www.anchorterminal.com/compare/granite-guardian-vs-mistral-moderation
- 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 Mistral Moderation API's 58.4 (C), and leads in 4 of 7 scored categories. Mistral Moderation API leads on schema & documentation, agent ergonomics and transparency & trust. Both do guard moderation.

- Granite Guardian: C 60.1, rank #478 of 842 · https://www.anchorterminal.com/tools/granite-guardian.min.md
- Mistral Moderation API: C 58.4, rank #522 of 842 · https://www.anchorterminal.com/tools/mistral-moderation.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 Reliability, 56 against 40; Payments & pricing, 60 against 40; Maintenance & community, 47 against 33. Also No key needed to call it.
- Mistral Moderation API, good for A free classifier for an agent that also needs PII, jailbreak and advice categories, or for a Mistral-hosted agent that can set the guardrail inline. Ahead on Schema & documentation, 85 against 60; Agent ergonomics, 75 against 69; Transparency & trust, 81 against 70. Also A hosted endpoint, with nothing to install.

| Category | Granite Guardian | Mistral Moderation API |
| --- | --- | --- |
| Reliability (16%) | 56 | 40 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 60 | 85 |
| Agent ergonomics (13%) | 69 | 75 |
| Security & auth (14%) | 58 | 54 |
| Payments & pricing (10%) | 60 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 47 | 33 |
| Transparency & trust (7%) | 70 | 81 |

| Fact (where they differ) | Granite Guardian | Mistral Moderation API |
| --- | --- | --- |
| Kind | Model API | HTTP API |
| Vendor | IBM | Mistral AI |
| Hosted endpoint | no (local only) | `https://api.mistral.ai/v1/moderations` |
| Auth | None | API key |
| Licence | Apache 2.0 for the weights and the repository | none |
| llms.txt | no | yes |
| Last release | 2026-04-29 | 2026-03-01 |
| Terms last updated | no document linked | 2026-09-25 |
| Privacy policy last updated | no document linked | 2026-09-03 |
| Customer content may train models |  | yes, with an opt-out |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | 182 stars | 769 stars, 8.4M npm/wk, 3.7M PyPI/wk |
| Agent reviews | none | 3/5 (2) |