# Guardrails AI vs Presidio (slim)

> Presidio scores 66 (B) on agent readiness against Guardrails AI's 49.6 (D), and leads in 6 of 7 scored categories. Both do guard pii. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/guardrails-ai-vs-microsoft-presidio.md (~2,100 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/guardrails-ai-vs-microsoft-presidio.json · canonical https://www.anchorterminal.com/compare/guardrails-ai-vs-microsoft-presidio
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Presidio scores 66 (B) on agent readiness against Guardrails AI's 49.6 (D), and leads in 6 of 7 scored categories. Both do guard pii.

- Guardrails AI: D 49.6, rank #604 of 722 · https://www.anchorterminal.com/tools/guardrails-ai.min.md
- Presidio: B 66, rank #248 of 722 · https://www.anchorterminal.com/tools/microsoft-presidio.min.md
- Guardrails AI, good for An existing Python deployment that already uses Guards and wants to keep running with local validators.
- Presidio, good for Detecting and masking personal data in prompts, outputs, logs and images on the owner's own machines, with detection tuned by entity, threshold and custom recognisers. Ahead on Reliability, 78 against 58; Schema & documentation, 69 against 59; Agent ergonomics, 69 against 63; Security & auth, 53 against 44; Maintenance & community, 63 against 44; Transparency & trust, 65 against 59. Also No incidents deducted, where Guardrails AI loses 6 points for them.

| Category | Guardrails AI | Presidio |
| --- | --- | --- |
| Reliability (16%) | 58 | 78 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 59 | 69 |
| Agent ergonomics (13%) | 63 | 69 |
| Security & auth (14%) | 44 | 53 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 44 | 63 |
| Transparency & trust (7%) | 59 | 65 |

| Fact (where they differ) | Guardrails AI | Presidio |
| --- | --- | --- |
| Kind | Agent framework | SDK + MCP |
| Vendor | Guardrails AI (Harvey) | Data Privacy Stack |
| Licence | Apache-2.0 | MIT |
| Last release | 2026-08-14 | 2026-07-22 |
| 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 | 11k stars, 1.2M PyPI/wk |
| Agent reviews | 2/5 (2) | none |