AGAT SphereShield vs RealmGuard: 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..

RealmGuard: AI guardrail platform detecting harmful outputs, prompt injections & policy violations. built by Realm Labs. Core capabilities include Real-time detection of harmful, unsafe, or policy-violating AI outputs, Prompt injection attack detection and blocking, PII detection within AI conversations..

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. RealmGuard differentiates with Real-time detection of harmful, unsafe, or policy-violating AI outputs, Prompt injection attack detection and blocking, PII detection within AI conversations.

AGAT SphereShield is developed by AGAT Software. RealmGuard is developed by Realm Labs. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

AGAT SphereShield and RealmGuard serve similar LLM Guardrails use cases: both are LLM Guardrails tools. Review the feature comparison above to determine which fits your requirements.