# Protecto AI Guardrails vs RealmGuard: side-by-side comparison (2026)

[Protecto AI Guardrails](https://cybersectools.com/tools/protecto-ai-guardrails) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Protecto](https://cybersectools.com/companies/protecto). [RealmGuard](https://cybersectools.com/tools/realm-labs-platform) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Realm Labs](https://cybersectools.com/companies/realm-labs). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Protecto AI Guardrails | RealmGuard |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | LLM Guardrails | LLM Guardrails |
| Verified | No | No |
| Deployment type | Hybrid | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Protecto | Realm Labs |
| Headquarters | – | – |

### Use cases and capabilities

| | Protecto AI Guardrails | RealmGuard |
|---|---|---|
| PII | Yes | Yes |
| Tokenization | Yes | – |
| RAG | Yes | – |
| RBAC | Yes | – |
| Sensitive Data | Yes | – |
| Generative AI | Yes | – |
| LLM Guardrails | – | Yes |
| LLM Security | – | Yes |
| Prompt Injection | – | Yes |
| AI Firewall | – | Yes |
| GenAI Security | – | Yes |
| Content Filtering | – | Yes |
| AI Compliance | – | Yes |
| AI Governance | – | Yes |
| OWASP | – | Yes |

### Core features

**Protecto AI Guardrails**

9 features listed. Sign in on the page to see them.

**RealmGuard**

10 features listed. Sign in on the page to see them.

## Protecto AI Guardrails vs RealmGuard FAQ

Common questions when comparing Protecto AI Guardrails vs RealmGuard for LLM guardrails.

### What is the difference between Protecto AI Guardrails and RealmGuard?

**Protecto AI Guardrails**: AI guardrails tool for PII/PHI detection, masking & content filtering in LLM apps, built by Protecto.

**RealmGuard**: AI guardrail platform detecting harmful outputs, prompt injections & policy violations, built by Realm Labs.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Protecto AI Guardrails and RealmGuard?

**Protecto AI Guardrails** is made by Protecto. **RealmGuard** is made by Realm Labs. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Protecto AI Guardrails a good alternative to RealmGuard?

Often, yes. Protecto AI Guardrails and RealmGuard are both LLM Guardrails products, and both cover PII. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Protecto AI Guardrails vs Senthex AI Firewall](https://cybersectools.com/compare/protecto-ai-guardrails-vs-senthex-ai-firewall)
- [Protecto AI Guardrails vs Airia AI Platform Guardrails](https://cybersectools.com/compare/airia-ai-platform-guardrails-vs-protecto-ai-guardrails)
- [Protecto AI Guardrails vs Promptfoo Guardrails](https://cybersectools.com/compare/promptfoo-guardrails-vs-protecto-ai-guardrails)
- [RealmGuard vs Senthex AI Firewall](https://cybersectools.com/compare/realm-labs-platform-vs-senthex-ai-firewall)
- [RealmGuard vs Airia AI Platform Guardrails](https://cybersectools.com/compare/airia-ai-platform-guardrails-vs-realm-labs-platform)
- [RealmGuard vs Promptfoo Guardrails](https://cybersectools.com/compare/promptfoo-guardrails-vs-realm-labs-platform)

## Alternatives to each

- [See all Protecto AI Guardrails alternatives](https://cybersectools.com/alternatives/protecto-ai-guardrails)
- [See all RealmGuard alternatives](https://cybersectools.com/alternatives/realm-labs-platform)

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Source: https://cybersectools.com/compare/protecto-ai-guardrails-vs-realm-labs-platform

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/protecto-ai-guardrails.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Protecto AI Guardrails and RealmGuard: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md