Promptfoo LLM Vulnerability Scanner is a free AI red teaming solution by Promptfoo. Vulcan AI Red Teaming is a commercial AI red teaming solution by Vulcan. Features, integrations, deployment and the company behind each one, side by side.
Open-source LLM vulnerability scanner for AI red teaming and security testing.
Expert-led adversarial testing service for agentic AI and foundation model deployments
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Based on what each listing shows: deployment, company size, price and open source.
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 fits if you want a cloud product.
Common questions when comparing Promptfoo LLM Vulnerability Scanner vs Vulcan AI Red Teaming for 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.
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.
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.
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Updated 2026-11-02
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