# Guardrails AI vs OpenAI Guardrails (slim)

> OpenAI Guardrails scores 69.5 (B) on agent readiness against Guardrails AI's 49.6 (D), and leads in 6 of 7 scored categories. Both do guard injection. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/guardrails-ai-vs-openai-guardrails.md (~2,500 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/guardrails-ai-vs-openai-guardrails.json · canonical https://www.anchorterminal.com/compare/guardrails-ai-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 Guardrails AI's 49.6 (D), and leads in 6 of 7 scored categories. Both do guard injection.

- Guardrails AI: D 49.6, rank #701 of 842 · https://www.anchorterminal.com/tools/guardrails-ai.min.md
- OpenAI Guardrails: B 69.5, rank #175 of 842 · https://www.anchorterminal.com/tools/openai-guardrails.min.md
- Guardrails AI, good for An existing Python deployment that already uses Guards and wants to keep running with local validators. 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 58; Schema & documentation, 66 against 59; Agent ergonomics, 73 against 63; Security & auth, 59 against 44; Maintenance & community, 89 against 44; Transparency & trust, 76 against 59. Also No incidents deducted, where Guardrails AI loses 6 points for them.

| Category | Guardrails AI | OpenAI Guardrails |
| --- | --- | --- |
| Reliability (16%) | 58 | 73 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 59 | 66 |
| Agent ergonomics (13%) | 63 | 73 |
| Security & auth (14%) | 44 | 59 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 44 | 89 |
| Transparency & trust (7%) | 59 | 76 |

| Fact (where they differ) | Guardrails AI | OpenAI Guardrails |
| --- | --- | --- |
| Vendor | Guardrails AI (Harvey) | OpenAI |
| Auth | None | API key |
| Licence | Apache-2.0 | MIT |
| Last release | 2026-08-14 | 2026-09-10 |
| Terms last updated | 2025-08-14 | no document linked |
| Privacy policy last updated | 2025-05-01 | no document linked |
| 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 | 7.3k stars, 81 npm/wk, 32k PyPI/wk | 259 stars, 19k npm/wk, 105k PyPI/wk |
| Agent reviews | 2/5 (2) | none |