AGAT SphereShield vs Zscaler SPLX: Side-by-Side Comparison (2026)

AGAT SphereShield: UC security platform with DLP, ethical wall, archive & eDiscovery. built by AGAT Software. Core capabilities include Ethical Wall: restricts communication between users, groups, or domains with granular activity-level controls (messaging, file sharing, audio/video, recording, desktop sharing), Real-time inline DLP inspection of files, messages, and images before content reaches the cloud or destination, Archive & eDiscovery: stores messages, files, audio, video, and meeting activities in cloud or on-premises repositories with search by user, date, channel, or text..

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.

AGAT SphereShield differentiates with Ethical Wall: restricts communication between users, groups, or domains with granular activity-level controls (messaging, file sharing, audio/video, recording, desktop sharing), Real-time inline DLP inspection of files, messages, and images before content reaches the cloud or destination, Archive & eDiscovery: stores messages, files, audio, video, and meeting activities in cloud or on-premises repositories with search by user, date, channel, or text. 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.

AGAT SphereShield is developed by AGAT Software. 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.

AGAT SphereShield and Zscaler SPLX serve similar LLM Guardrails use cases. Review the feature comparison above to determine which fits your requirements.