Promptfoo Guardrails is a commercial LLM guardrails solution by Promptfoo. Zscaler AI Runtime Protection is a commercial LLM guardrails solution by SPLX. Features, integrations, deployment and the company behind each one, side by side.
Adaptive LLM guardrails that self-improve via red team feedback loops.
Runtime protection for AI systems detecting prompt attacks & data leaks
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
Promptfoo Guardrails fits if you need both cloud and on-premises options and you are a startup or a small business.
Zscaler AI Runtime Protection fits if you want a cloud product.
Common questions when comparing Promptfoo Guardrails vs Zscaler AI Runtime Protection for LLM guardrails.
Promptfoo Guardrails: Adaptive LLM guardrails that self-improve via red team feedback loops. Built by Promptfoo.
Zscaler AI Runtime Protection: Runtime protection for AI systems detecting prompt attacks & data leaks. Built by SPLX.
The table above shows where their features, integrations, deployment and company size fit differ.
Promptfoo Guardrails is made by Promptfoo. Zscaler AI Runtime Protection is made by SPLX. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Promptfoo Guardrails and Zscaler AI Runtime Protection are both LLM Guardrails products. Use the table above to see where features, deployment and company size fit differ.
No LLM Guardrails shortlist yet. This is the closest one.
Updated 2026-11-02
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