Zscaler SPLX vs Zscaler SPLX Platform: Side-by-Side Comparison (2026)

Short answer

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. Mid-market and enterprise security teams deploying internal LLM applications need Zscaler SPLX Platform because it's the only platform that treats AI systems as supply chain risk, not just another application to monitor. The platform covers the full NIST lifecycle from ID.AM asset discovery through DE.CM runtime inspection, with native jailbreak detection and automated red teaming that catches prompt injection attacks before they reach production. Skip this if your organization hasn't yet built or integrated custom LLM applications; you're paying for capabilities you won't use for another 18 months.