FireGuard vs Guardrails AI OSS: Side-by-Side Comparison (2026)

FireGuard: Policy enforcement & monitoring layer for Microsoft Copilot deployments. built by Fireraven. Core capabilities include Real-time input and output controls for Copilot, Department and workflow-scoped policy enforcement, Restriction of sensitive topics (medical, legal, financial)..

Guardrails AI OSS: Open-source framework for real-time LLM safety, policy & compliance enforcement. built by Guardrails AI. Core capabilities include Real-time LLM input/output validation, PII leak detection and prevention, Hallucination detection..

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

FireGuard differentiates with Real-time input and output controls for Copilot, Department and workflow-scoped policy enforcement, Restriction of sensitive topics (medical, legal, financial). Guardrails AI OSS differentiates with Real-time LLM input/output validation, PII leak detection and prevention, Hallucination detection.

FireGuard is developed by Fireraven. Guardrails AI OSS is developed by Guardrails AI. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

FireGuard and Guardrails AI OSS serve similar LLM Guardrails use cases: both are LLM Guardrails tools, both cover LLM Guardrails, AI Governance, Content Filtering. Key differences: FireGuard is Commercial while Guardrails AI OSS is Free. Review the feature comparison above to determine which fits your requirements.