# Promptfoo LLM Vulnerability Scanner vs Vulcan AI Red Teaming: side-by-side comparison (2026)

[Promptfoo LLM Vulnerability Scanner](https://cybersectools.com/tools/promptfoo-llm-vulnerability-scanner) is a free [AI red teaming](https://cybersectools.com/categories/ai-red-teaming) solution by [Promptfoo](https://cybersectools.com/companies/promptfoo). [Vulcan AI Red Teaming](https://cybersectools.com/tools/vulcan-ai-red-teaming) is a commercial [AI red teaming](https://cybersectools.com/categories/ai-red-teaming) solution by [Vulcan](https://cybersectools.com/companies/vulcan). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Promptfoo LLM Vulnerability Scanner | Vulcan AI Red Teaming |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | AI Red Teaming | AI Red Teaming |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | Promptfoo | Vulcan |
| Headquarters | – | – |

### Use cases and capabilities

| | Promptfoo LLM Vulnerability Scanner | Vulcan AI Red Teaming |
|---|---|---|
| LLM Security | Yes | Yes |
| AI Pentesting | Yes | Yes |
| Prompt Injection | Yes | Yes |
| Open Source | Yes | – |
| Red Team | Yes | – |
| RAG Security | Yes | – |
| Agentic AI Security | Yes | Yes |
| GenAI Security | Yes | – |
| Generative AI | Yes | Yes |
| PII | Yes | – |
| Vulnerability | – | Yes |
| Security Validation | – | Yes |
| AI Compliance | – | Yes |
| Threat Modeling | – | Yes |
| Data Exfiltration | – | Yes |

### Core features

**Promptfoo LLM Vulnerability Scanner**

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

**Vulcan AI Red Teaming**

8 features 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.

- [Promptfoo LLM Vulnerability Scanner](https://cybersectools.com/tools/promptfoo-llm-vulnerability-scanner) fits if you need to run it on your own servers, you are a startup or a small business and you need a free product.
- [Vulcan AI Red Teaming](https://cybersectools.com/tools/vulcan-ai-red-teaming) fits if you want a cloud product.

## Promptfoo LLM Vulnerability Scanner vs Vulcan AI Red Teaming FAQ

Common questions when comparing Promptfoo LLM Vulnerability Scanner vs Vulcan AI Red Teaming for AI red teaming.

### What is the difference between Promptfoo LLM Vulnerability Scanner and Vulcan AI Red Teaming?

**Promptfoo LLM Vulnerability Scanner**: Open-source LLM vulnerability scanner for AI red teaming and security testing, built by Promptfoo.

**Vulcan AI Red Teaming**: Expert-led adversarial testing service for agentic AI and foundation model deployments, built by Vulcan.

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

### Who makes Promptfoo LLM Vulnerability Scanner and Vulcan AI Red Teaming?

**Promptfoo LLM Vulnerability Scanner** is made by Promptfoo. **Vulcan AI Red Teaming** 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 Promptfoo LLM Vulnerability Scanner a good alternative to Vulcan AI Red Teaming?

Often, yes. Promptfoo LLM Vulnerability Scanner and Vulcan AI Red Teaming are both AI Red Teaming products, and both cover AI Pentesting, LLM Security, Generative AI. Key differences: Promptfoo LLM Vulnerability Scanner is Free while Vulcan AI Red Teaming is Commercial. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Promptfoo LLM Vulnerability Scanner vs Tempest AI Security Test](https://cybersectools.com/compare/promptfoo-llm-vulnerability-scanner-vs-tempest-ai-security-test)
- [Promptfoo LLM Vulnerability Scanner vs RedRaven](https://cybersectools.com/compare/promptfoo-llm-vulnerability-scanner-vs-redraven)
- [Promptfoo LLM Vulnerability Scanner vs Validaitor AI Testing Platform](https://cybersectools.com/compare/promptfoo-llm-vulnerability-scanner-vs-validaitor-ai-testing-platform)
- [Vulcan AI Red Teaming vs Tempest AI Security Test](https://cybersectools.com/compare/tempest-ai-security-test-vs-vulcan-ai-red-teaming)
- [Vulcan AI Red Teaming vs RedRaven](https://cybersectools.com/compare/redraven-vs-vulcan-ai-red-teaming)
- [Vulcan AI Red Teaming vs Validaitor AI Testing Platform](https://cybersectools.com/compare/validaitor-ai-testing-platform-vs-vulcan-ai-red-teaming)

## Alternatives to each

- [See all Promptfoo LLM Vulnerability Scanner alternatives](https://cybersectools.com/alternatives/promptfoo-llm-vulnerability-scanner)
- [See all Vulcan AI Red Teaming alternatives](https://cybersectools.com/alternatives/vulcan-ai-red-teaming)

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Source: https://cybersectools.com/compare/promptfoo-llm-vulnerability-scanner-vs-vulcan-ai-red-teaming

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

More on Promptfoo LLM Vulnerability Scanner and Vulcan AI Red Teaming: 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