Fiddler Guardrails vs TrojAI Defend: Side-by-Side Comparison (2026)

Fiddler Guardrails: Guardrails for protecting LLM and agentic applications from harmful content. built by Fiddler AI. Core capabilities include Runtime protection for LLM applications, Harmful content detection and prevention, Security risk monitoring for agentic applications..

TrojAI Defend: AI firewall for runtime protection of AI models, applications, and agents. built by Troj AI. Core capabilities include Real-time monitoring and blocking of AI inputs and outputs, Protection against prompt injection attacks, Jailbreaking prevention..

Both serve the LLM Guardrails market but differ in approach, feature depth, and target audience.