# Prompt Guard vs Vulcan Protect: side-by-side comparison (2026)

[Prompt Guard](https://cybersectools.com/tools/prompt-guard) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [NeuralTrust](https://cybersectools.com/companies/neuraltrust). [Vulcan Protect](https://cybersectools.com/tools/vulcan-protect) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Vulcan](https://cybersectools.com/companies/vulcan). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Prompt Guard | Vulcan Protect |
|---|---|---|
| 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 | NeuralTrust | Vulcan |
| Headquarters | – | – |

### Use cases and capabilities

| | Prompt Guard | Vulcan Protect |
|---|---|---|
| Runtime Security | Yes | – |
| LLM Security | – | Yes |
| Prompt Injection | – | Yes |
| GenAI Security | – | Yes |
| AI DLP | – | Yes |
| PII | – | Yes |
| Content Filtering | – | Yes |
| RAG Security | – | Yes |
| Generative AI | – | Yes |
| MITRE ATT&CK | – | Yes |
| OWASP | – | Yes |

### Core features

**Prompt Guard**

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

**Vulcan Protect**

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

## Prompt Guard vs Vulcan Protect FAQ

Common questions when comparing Prompt Guard vs Vulcan Protect for LLM guardrails.

### What is the difference between Prompt Guard and Vulcan Protect?

**Prompt Guard**: Guardrail engine protecting LLM apps from prompt injections and jailbreaks. Built by NeuralTrust.

**Vulcan Protect**: Runtime guardrail platform that monitors and protects GenAI inputs/outputs in production. Built by Vulcan.

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

### Who makes Prompt Guard and Vulcan Protect?

**Prompt Guard** is made by NeuralTrust. **Vulcan Protect** is made by Vulcan. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Prompt Guard a good alternative to Vulcan Protect?

Often, yes. Prompt Guard and Vulcan Protect are both LLM Guardrails products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Prompt Guard vs RealmGuard](https://cybersectools.com/compare/prompt-guard-vs-realm-labs-platform)
- [Prompt Guard vs Pangea AI Security Platform](https://cybersectools.com/compare/pangea-ai-security-platform-vs-prompt-guard)
- [Prompt Guard vs PointGuard AI Intelligent Guardrails](https://cybersectools.com/compare/pointguard-ai-intelligent-guardrails-vs-prompt-guard)
- [Vulcan Protect vs RealmGuard](https://cybersectools.com/compare/realm-labs-platform-vs-vulcan-protect)
- [Vulcan Protect vs Pangea AI Security Platform](https://cybersectools.com/compare/pangea-ai-security-platform-vs-vulcan-protect)
- [Vulcan Protect vs PointGuard AI Intelligent Guardrails](https://cybersectools.com/compare/pointguard-ai-intelligent-guardrails-vs-vulcan-protect)

## Alternatives to each

- [See all Prompt Guard alternatives](https://cybersectools.com/alternatives/prompt-guard)
- [See all Vulcan Protect alternatives](https://cybersectools.com/alternatives/vulcan-protect)

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Source: https://cybersectools.com/compare/prompt-guard-vs-vulcan-protect

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

More on Prompt Guard and Vulcan Protect: 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