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

[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). [Starseer AI Gateway](https://cybersectools.com/tools/starseer-ai-gateway) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Starseer](https://cybersectools.com/companies/starseer). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | RealmGuard | Starseer AI Gateway |
|---|---|---|
| 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 | Realm Labs | Starseer |
| Headquarters | – | – |

### Use cases and capabilities

| | RealmGuard | Starseer AI Gateway |
|---|---|---|
| LLM Guardrails | Yes | – |
| LLM Security | Yes | Yes |
| Prompt Injection | Yes | Yes |
| AI Firewall | Yes | – |
| GenAI Security | Yes | Yes |
| Content Filtering | Yes | – |
| PII | Yes | – |
| AI Compliance | Yes | Yes |
| AI Governance | Yes | Yes |
| OWASP | Yes | – |
| AI Gateway | – | Yes |
| Generative AI | – | Yes |
| Gateway | – | Yes |
| Agentic AI Security | – | Yes |
| Shadow AI | – | Yes |

### Core features

**RealmGuard**

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

**Starseer AI Gateway**

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

### Integrations

**RealmGuard**

No integrations listed.

**Starseer AI Gateway**

1 integration listed. Sign in on the page to see them.

## RealmGuard vs Starseer AI Gateway FAQ

Common questions when comparing RealmGuard vs Starseer AI Gateway for LLM guardrails.

### What is the difference between RealmGuard and Starseer AI Gateway?

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

**Starseer AI Gateway**: Built by Starseer.

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

### Who makes RealmGuard and Starseer AI Gateway?

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

### Is RealmGuard a good alternative to Starseer AI Gateway?

Often, yes. RealmGuard and Starseer AI Gateway are both LLM Guardrails products, and both cover Prompt Injection, LLM Security, AI Governance. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [RealmGuard vs Confident Security](https://cybersectools.com/compare/confident-security-vs-realm-labs-platform)
- [RealmGuard vs Pangea AI Security Platform](https://cybersectools.com/compare/pangea-ai-security-platform-vs-realm-labs-platform)
- [RealmGuard vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/portkey-guardrails-for-bedrock-vs-realm-labs-platform)
- [Starseer AI Gateway vs Confident Security](https://cybersectools.com/compare/confident-security-vs-starseer-ai-gateway)
- [Starseer AI Gateway vs Pangea AI Security Platform](https://cybersectools.com/compare/pangea-ai-security-platform-vs-starseer-ai-gateway)
- [Starseer AI Gateway vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/portkey-guardrails-for-bedrock-vs-starseer-ai-gateway)

## Alternatives to each

- [See all RealmGuard alternatives](https://cybersectools.com/alternatives/realm-labs-platform)
- [See all Starseer AI Gateway alternatives](https://cybersectools.com/alternatives/starseer-ai-gateway)

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

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More on RealmGuard and Starseer AI Gateway: 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