# Fiddler Guardrails

Fiddler Guardrails is an LLM Guardrails product by Fiddler AI. It runs in the cloud or on-premises (hybrid). Pricing is commercial (contact sales).

Guardrails for protecting LLM and agentic applications from harmful content

Checked October 2026.

## What is Fiddler Guardrails?

Fiddler Guardrails is a security solution designed to protect large language model (LLM) and agentic applications from harmful content and security risks. The product provides runtime protection for AI applications by implementing guardrails that monitor and control AI system inputs and outputs.

The solution is positioned as offering low-latency guardrails suitable for enterprise production environments. It integrates into the AI application lifecycle to detect and prevent security threats, harmful content generation, and other risks associated with generative AI deployments.

Fiddler Guardrails is part of a broader AI observability and governance platform that includes capabilities for monitoring, testing, and governing AI systems at scale. The product supports both agentic AI applications and traditional LLM deployments across various industries including government, healthcare, and insurance.

The solution can be deployed in enterprise environments and offers both commercial licensing and a free tier for developers to test guardrails functionality. It is designed to work alongside other AI infrastructure components and can be integrated into existing AI development and deployment workflows.

Tags: Content Filtering, Generative AI

## Where it fits in your security program (NIST CSF 2.0)

- [Protect](https://cybersectools.com/guides/building-protect-program-small-team): helps you prevent attacks and keep data safe.
- [Detect](https://cybersectools.com/guides/building-detect-program-small-team): helps you spot attacks and unusual activity.

## Quick facts

- Category: [AI Security](https://cybersectools.com/categories/ai-security) · [LLM Guardrails](https://cybersectools.com/categories/llm-guardrails)
- Vendor: [Fiddler AI](https://cybersectools.com/companies/fiddler-ai)
- Deployment: Hybrid
- Company size fit: SMB, Mid-Market, Enterprise
- Pricing: Contact sales
- Features: 9 listed
- Integrations: 7 listed
- Website: fiddler.ai

The full feature and integration lists are on the page for signed-in visitors.

## Where it ranks

No shortlist covers this product's category yet. The closest is [Best AI SOC Solutions for Business](https://cybersectools.com/shortlists/best-ai-soc-solutions).

## Fiddler Guardrails FAQ

### What is Fiddler Guardrails?

Fiddler Guardrails is a product by Fiddler AI in the LLM Guardrails category. It covers Content Filtering and Generative AI.

### What is the pricing for Fiddler Guardrails?

Fiddler Guardrails is a commercial product. For pricing, visit https://www.fiddler.ai/guardrails or contact Fiddler AI.

### What are alternatives to Fiddler Guardrails?

Alternatives to Fiddler Guardrails listed on CybersecTools:

1. [Aiceberg Risk Signals Library](https://cybersectools.com/tools/aiceberg-risk-signals-library) - Library of AI threat detection signals for securing generative AI models (Commercial)
2. [Vulcan Protect](https://cybersectools.com/tools/vulcan-protect) - Runtime guardrail platform that monitors and protects GenAI inputs/outputs in production (Commercial)
3. [Akamai Firewall for AI](https://cybersectools.com/tools/akamai-firewall-for-ai) - Firewall protecting LLMs from prompt attacks, data leaks, and harmful outputs (Commercial)
4. [Tinfoil GPT-OSS Safeguard 120B](https://cybersectools.com/tools/tinfoil-gpt-oss-safeguard-120b) - Safety reasoning model for content classification and trust & safety apps (Commercial)
5. [Alice WonderFence](https://cybersectools.com/tools/alice-wonderfence) - Runtime guardrails for GenAI apps providing real-time threat detection & response (Commercial)

Compare all Fiddler Guardrails alternatives at [https://cybersectools.com/alternatives/fiddler-guardrails](https://cybersectools.com/alternatives/fiddler-guardrails)

### What deployment and organization size does Fiddler Guardrails fit?

Fiddler Guardrails is available as cloud or on-premises (hybrid). It is listed for small businesses, mid-market companies and enterprises. Pricing is commercial. Ask Fiddler AI for pricing and support terms.

## Compare Fiddler Guardrails with similar solutions

- [Fiddler Guardrails vs Aiceberg Risk Signals Library](https://cybersectools.com/compare/aiceberg-risk-signals-library-vs-fiddler-guardrails)
- [Fiddler Guardrails vs Vulcan Protect](https://cybersectools.com/compare/fiddler-guardrails-vs-vulcan-protect)
- [Fiddler Guardrails vs Akamai Firewall for AI](https://cybersectools.com/compare/akamai-firewall-for-ai-vs-fiddler-guardrails)

All alternatives to Fiddler Guardrails: [/alternatives/fiddler-guardrails](https://cybersectools.com/alternatives/fiddler-guardrails)

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Source: https://cybersectools.com/tools/fiddler-guardrails

For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any compare page has a Markdown copy too (add .md to its URL).

More on Fiddler Guardrails and Fiddler AI: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md