Features, pricing, ratings, and pros and cons, compared head to head.
AI Security Gateway™ is a commercial llm guardrails tool by AI Security Gateway. Zscaler SPLX is a commercial ai spm tool by SPLX. Compare features, ratings, integrations, and community reviews side by side to find the best llm guardrails fit for your security stack. Independent and vendor-neutral: we never sell rankings.
Based on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Enterprise security teams deploying large language models in production will find value in Zscaler SPLX because it combines runtime input guardrails with automated red teaming, catching both prompt injection attacks and drift in model behavior that traditional security tools miss. The platform maps to six NIST CSF 2.0 functions across asset discovery, continuous monitoring, and supply chain risk, with particular strength in the Adverse Event Analysis phase through real-time LLM log inspection. This tool is overkill for teams still piloting single LLM applications or those primarily concerned with third-party model risk; it's built for organizations managing agentic workflows and internal model customization at scale.
OpenAI-compatible proxy for LLM DLP, PII redaction, and cost governance.
End-to-end platform for securing AI systems across their entire lifecycle
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Common questions about comparing AI Security Gateway™ vs Zscaler SPLX for your llm guardrails needs.
AI Security Gateway™: OpenAI-compatible proxy for LLM DLP, PII redaction, and cost governance. built by AI Security Gateway. Core capabilities include 28+ PII entity type detection and redaction using NLP, Image OCR scanning for PII in vision requests, Prompt injection and jailbreak blocking..
Zscaler SPLX: End-to-end platform for securing AI systems across their entire lifecycle. built by SPLX. Core capabilities include AI asset discovery and AI-BOM generation, Automated AI red teaming with attack database, Runtime input/output guardrails for prompt injection prevention..
Both serve the LLM Guardrails market but differ in approach, feature depth, and target audience.
AI Security Gateway™ differentiates with 28+ PII entity type detection and redaction using NLP, Image OCR scanning for PII in vision requests, Prompt injection and jailbreak blocking. Zscaler SPLX differentiates with AI asset discovery and AI-BOM generation, Automated AI red teaming with attack database, Runtime input/output guardrails for prompt injection prevention.
AI Security Gateway™ is developed by AI Security Gateway founded in 2025-01-01T00:00:00.000Z. Zscaler SPLX is developed by SPLX. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.
AI Security Gateway™ and Zscaler SPLX serve similar LLM Guardrails use cases. Review the feature comparison above to determine which fits your requirements.
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