Prompt Security alternatives

1. Dynamo AI

Customizable runtime guardrails, evaluation, and red-teaming for enterprise generative and agentic AI

Best for: Regulated and security-sensitive enterprises that need self-hosted, customizable runtime guardrails plus pre-deployment red-teaming for LLM and agentic applications.

Frameworks: EU AI Act, NIST AI RMF

2. CalypsoAI

Full-lifecycle inference-layer security and guardrails for enterprise AI

Best for: Security and risk leaders in large or regulated enterprises needing model-agnostic runtime controls plus governance

Frameworks: NIST AI RMF, EU AI Act

3. Lakera

AI-native security platform guarding GenAI apps against prompt attacks and data loss

Best for: Security teams needing continuously updated, model-agnostic runtime protection for GenAI apps

Frameworks: EU AI Act, NIST AI RMF

4. Guardion

Zero-trust runtime security and governance for enterprise AI agents

Best for: Regulated enterprises deploying AI agents that need zero-trust runtime governance and data protection

5. Amazon Bedrock Guardrails

Configurable safety, privacy and grounding safeguards for generative AI on AWS

Best for: Enterprises building generative AI on AWS that want native, IAM-governed safety and grounding controls

6. Bifrost (Maxim AI)

Open-source enterprise AI gateway with inline guardrails across 1,000+ models

Best for: Platform and ML teams wanting a single, model-agnostic gateway to centralize routing and guardrail policy

7. Guardrails AI

Open-source framework for validating and correcting LLM inputs and outputs

Best for: ML and application engineers who want an open, extensible, code-level validation layer for LLM apps

8. NVIDIA NeMo Guardrails

Open-source toolkit for adding programmable rails to conversational LLM systems

Best for: Developers building conversational LLM apps who need programmable dialog rails and topic control