AI Security Gateway™ vs Fiddler Guardrails: Side-by-Side Comparison (2026)

AI Security Gateway™: OpenAI-compatible proxy for LLM DLP, PII redaction, and cost governance. built by AI Security Gateway. Core capabilities include 28+ PII entity type detection and redaction using NLP, Image OCR scanning for PII in vision requests, Prompt injection and jailbreak blocking..

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..

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

AI Security Gateway™ differentiates with 28+ PII entity type detection and redaction using NLP, Image OCR scanning for PII in vision requests, Prompt injection and jailbreak blocking. Fiddler Guardrails differentiates with Runtime protection for LLM applications, Harmful content detection and prevention, Security risk monitoring for agentic applications.

AI Security Gateway™ is developed by AI Security Gateway founded in 2025-01-01T00:00:00.000Z. Fiddler Guardrails is developed by Fiddler AI. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

AI Security Gateway™ integrates with OpenAI, Anthropic, Google Gemini, Mistral AI, Groq and 5 more. Fiddler Guardrails integrates with Amazon SageMaker, Google Cloud Vertex AI, NVIDIA NIM, NVIDIA NeMo Guardrails, Databricks and 1 more. Check integration compatibility with your existing security stack before deciding.

AI Security Gateway™ and Fiddler Guardrails serve similar LLM Guardrails use cases: both are LLM Guardrails tools. Review the feature comparison above to determine which fits your requirements.