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

[Defend AI](https://cybersectools.com/tools/defend-ai) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Straiker](https://cybersectools.com/companies/straiker). [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

| | Defend AI | 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 | Straiker | Realm Labs |
| Headquarters | – | – |

### Use cases and capabilities

| | Defend AI | RealmGuard |
|---|---|---|
| Runtime Security | Yes | – |
| MCP Security | Yes | – |
| AI Compliance | Yes | Yes |
| LLM Guardrails | – | Yes |
| LLM Security | – | Yes |
| Prompt Injection | – | Yes |
| AI Firewall | – | Yes |
| GenAI Security | – | Yes |
| Content Filtering | – | Yes |
| PII | – | Yes |
| AI Governance | – | Yes |
| OWASP | – | Yes |

### Core features

**Defend AI**

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

**RealmGuard**

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

### Integrations

**Defend AI**

5 integrations listed. Sign in on the page to see them.

**RealmGuard**

No integrations listed.

## Defend AI vs RealmGuard FAQ

Common questions when comparing Defend AI vs RealmGuard for LLM guardrails.

### What is the difference between Defend AI and RealmGuard?

**Defend AI**: Defend AI delivers runtime security guardrails with >98.1% accuracy and subsecond latency. Built by Straiker.

**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 Defend AI and RealmGuard?

**Defend AI** is made by Straiker founded in 2024-01-01T00:00:00.000Z. **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 Defend AI a good alternative to RealmGuard?

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

## Related comparisons

- [Defend AI vs Senthex AI Firewall](https://cybersectools.com/compare/defend-ai-vs-senthex-ai-firewall)
- [Defend AI vs AI Model Guardrails](https://cybersectools.com/compare/ai-model-guardrails-vs-defend-ai)
- [Defend AI vs Airia AI Platform Guardrails](https://cybersectools.com/compare/airia-ai-platform-guardrails-vs-defend-ai)
- [RealmGuard vs Senthex AI Firewall](https://cybersectools.com/compare/realm-labs-platform-vs-senthex-ai-firewall)
- [RealmGuard vs AI Model Guardrails](https://cybersectools.com/compare/ai-model-guardrails-vs-realm-labs-platform)
- [RealmGuard vs Airia AI Platform Guardrails](https://cybersectools.com/compare/airia-ai-platform-guardrails-vs-realm-labs-platform)

## Alternatives to each

- [See all Defend AI alternatives](https://cybersectools.com/alternatives/defend-ai)
- [See all RealmGuard alternatives](https://cybersectools.com/alternatives/realm-labs-platform)

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

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More on Defend AI 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