# Vulcan Protect vs Zscaler SPLX AI Runtime Threat Inspection: side-by-side comparison (2026)

[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). [Zscaler SPLX AI Runtime Threat Inspection](https://cybersectools.com/tools/zscaler-splx-ai-runtime-threat-inspection) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [SPLX](https://cybersectools.com/companies/splx). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Vulcan Protect | Zscaler SPLX AI Runtime Threat Inspection |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | LLM Guardrails | LLM Guardrails |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Vulcan | SPLX |
| Headquarters | – | – |

### Use cases and capabilities

| | Vulcan Protect | Zscaler SPLX AI Runtime Threat Inspection |
|---|---|---|
| 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 | – |
| Anomaly Detection | – | Yes |

### Core features

**Vulcan Protect**

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

**Zscaler SPLX AI Runtime Threat Inspection**

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

### Integrations

**Vulcan Protect**

No integrations listed.

**Zscaler SPLX AI Runtime Threat Inspection**

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

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Vulcan Protect](https://cybersectools.com/tools/vulcan-protect) fits if you need both cloud and on-premises options.
- [Zscaler SPLX AI Runtime Threat Inspection](https://cybersectools.com/tools/zscaler-splx-ai-runtime-threat-inspection) fits if you want a cloud product.

## Vulcan Protect vs Zscaler SPLX AI Runtime Threat Inspection FAQ

Common questions when comparing Vulcan Protect vs Zscaler SPLX AI Runtime Threat Inspection for LLM guardrails.

### What is the difference between Vulcan Protect and Zscaler SPLX AI Runtime Threat Inspection?

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

**Zscaler SPLX AI Runtime Threat Inspection**: Analyzes AI interaction logs for near real-time threat detection in GenAI apps. Built by SPLX.

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

### Who makes Vulcan Protect and Zscaler SPLX AI Runtime Threat Inspection?

**Vulcan Protect** is made by Vulcan. **Zscaler SPLX AI Runtime Threat Inspection** is made by SPLX. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Vulcan Protect a good alternative to Zscaler SPLX AI Runtime Threat Inspection?

Often, yes. Vulcan Protect and Zscaler SPLX AI Runtime Threat Inspection are both LLM Guardrails products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [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 Senthex AI Firewall](https://cybersectools.com/compare/senthex-ai-firewall-vs-vulcan-protect)
- [Zscaler SPLX AI Runtime Threat Inspection vs RealmGuard](https://cybersectools.com/compare/realm-labs-platform-vs-zscaler-splx-ai-runtime-threat-inspection)
- [Zscaler SPLX AI Runtime Threat Inspection vs Pangea AI Security Platform](https://cybersectools.com/compare/pangea-ai-security-platform-vs-zscaler-splx-ai-runtime-threat-inspection)
- [Zscaler SPLX AI Runtime Threat Inspection vs Senthex AI Firewall](https://cybersectools.com/compare/senthex-ai-firewall-vs-zscaler-splx-ai-runtime-threat-inspection)

## Alternatives to each

- [See all Vulcan Protect alternatives](https://cybersectools.com/alternatives/vulcan-protect)
- [See all Zscaler SPLX AI Runtime Threat Inspection alternatives](https://cybersectools.com/alternatives/zscaler-splx-ai-runtime-threat-inspection)

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Source: https://cybersectools.com/compare/vulcan-protect-vs-zscaler-splx-ai-runtime-threat-inspection

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

More on Vulcan Protect and Zscaler SPLX AI Runtime Threat Inspection: 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