Head-to-head · AI Guardrail Software
Enkrypt AI Guardrails vs Fiddler Guardrails
Enkrypt AI Guardrails leads on 0 checks, Fiddler Guardrails on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreEnkrypt AI Guardrails · 9.4/10
- Free planboth
Enkrypt AI Guardrails scores higher on our rubric for ai guardrail software: 9.4 against 8.2 out of 10; our editors rank them #1 and #9.
Enkrypt AI Guardrails is the better fit for teams needing broad production guardrails. Fiddler Guardrails is the better fit for teams needing affordable runtime evaluation.
- Enkrypt AI Guardrails fits best
Teams needing broad production guardrails
- Fiddler Guardrails fits best
Teams needing affordable runtime evaluation
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Side by side
| Feature | Enkrypt AI Guardrails 9.4/10 Visit ↗ | Fiddler Guardrails 8.2/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 8.2 |
| Ranking | #1 in AI Guardrail Software | #9 in AI Guardrail Software |
| Best for | Teams needing broad production guardrails | Teams needing affordable runtime evaluation |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | $134/mo | $0.002/unit usage-based |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud, Self-hosted | Cloud, Self-hosted |
| Platforms | Web | Web |
| Support | Email, Community, Live chat, Docs · 24/7 | Docs |
| Compliance | SOC 2, ISO 27001, GDPR, HIPAA | SOC 2, HIPAA, SSO/SAML |
| Integrations | 10 integrations | 4 integrations |
| Built for | Solo, Small business, Mid-market, Enterprise | Enterprise |
| Features Enkrypt AI Guardrails 4/4 · Fiddler Guardrails 4/4 | ||
| Prompt injection defense | ✓ | ✓ |
| PII detection | ✓ | ✓ |
| Jailbreak detection | ✓ | ✓ |
| Custom policies | ✓ | ✓ |
| Specs | ||
| Deployment | Not checked yet | Hybrid |
| SDK languages | Python | Python, Node.js |
| Our review | ||
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| Cons |
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| Our verdict | Enkrypt AI Guardrails is a runtime security layer for AI agents and applications. It evaluates inputs, retrieval content, tool calls, MCP traffic, and outputs, then can allow, modify, block, or escalate activity under configured policies.… Read the review → |
Fiddler Guardrails is a runtime policy enforcement layer for AI agents and LLM applications. It evaluates prompts and responses for prompt injection, jailbreaks, unsafe content, hallucinations, PII, and PHI, then applies configured allow,… Read the review → |
Strengths and trade-offs
Enkrypt AI Guardrails — where it wins
- Covers prompts, jailbreaks, PII, RAG, tools, MCP, and multimodal inputs
- Supports cloud, API, and self-hosted deployments
- Includes policy enforcement, audit logs, and compliance capabilities
Where it doesn't
- Advanced multimodal and enterprise controls require higher tiers
- Enterprise pricing and deployment are customized
- The free plan includes basic red team testing and community support
Fiddler Guardrails — where it wins
- Free real-time guardrails cover hallucinations, toxicity, PII/PHI, and jailbreaks
- $0.002-per-trace Developer pricing adds observability and custom evaluators
- Supports allow, block, or redact actions with configurable policy thresholds
Where it doesn't
- Enterprise pricing requires contacting the vendor
- Gateway integrations center on four listed frameworks
- Advanced deployment options are concentrated in the Enterprise plan
- Enkrypt AI Guardrails9.4/10 · Free plan
Broad runtime controls for teams securing production AI systems.
Visit Enkrypt AIFull verdict → - Fiddler Guardrails8.2/10 · Free plan
Affordable runtime evaluation with policy enforcement, detection, and gateway integrations.
Visit FiddlerFull verdict →
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All AI guardrail software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update








