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Prompt-injection firewalls & guardrails

Filters that sit in front of or around an LLM and block prompt injection, jailbreaks, data leaks and unsafe output.

16 tools · listed alphabetically · no paid ranking

Akamai Firewall for AI

Lab: pending

Edge or API-deployed LLM firewall that blocks prompt injection, jailbreaks, toxic output and data exfiltration.

CommercialPrompt-injection firewalls & guardrails

Amazon Bedrock Guardrails

Lab: pending

Configurable safeguards for Bedrock and other models: content filters, denied topics, PII redaction and prompt-attack detection.

Cloud servicePrompt-injection firewalls & guardrails

Azure AI Content Safety Prompt Shields

Lab: pending

Azure service that detects user prompt attacks and indirect (document) prompt injection.

Cloud servicePrompt-injection firewalls & guardrails

Cloudflare AI Security for Apps (Firewall for AI)

Lab: pending

WAF detection that flags prompt injection, PII and unsafe topics in AI application traffic at Cloudflare's edge.

Cloud servicePrompt-injection firewalls & guardrails

F5 AI Guardrails (formerly CalypsoAI)

Lab: pending

Runtime guardrails for generative AI apps; calypsoai.com now redirects here.

CommercialAcquired / parentPrompt-injection firewalls & guardrails

Google Cloud Model Armor

Lab: pending

Google Cloud service that screens prompts and responses for prompt injection, sensitive data leaks and harmful content.

Cloud servicePrompt-injection firewalls & guardrails

Guardrails AI

Lab: pending

Open-source framework and validator hub for checking and correcting LLM inputs and outputs.

Open source + commercialPrompt-injection firewalls & guardrails

Lakera Guard

Lab: pending

Real-time API that screens LLM inputs and outputs for prompt injection, data leakage and policy violations.

CommercialAcquired / parentPrompt-injection firewalls & guardrails

Lasso Security

Lab: pending

AI security platform for visibility, control and protection across AI models, agents and apps.

CommercialPrompt-injection firewalls & guardrails

LLM Guard

Lab: pending

Security toolkit of input/output scanners for LLM interactions. Repository is archived (read-only).

Open sourceAcquired / parentPrompt-injection firewalls & guardrails

NeMo Guardrails

Lab: pending

Open-source toolkit for adding programmable guardrails (topic, safety, jailbreak rails) to LLM apps.

Open sourcePrompt-injection firewalls & guardrails

NeuralTrust

Lab: pending

AI gateway and guardrails that protect agents and apps from attacks, hallucinations and data leaks.

CommercialPrompt-injection firewalls & guardrails

Pangea AI Guard

Lab: pending

API services for securing AI apps, including prompt-layer guardrails and data redaction.

CommercialAcquired / parentPrompt-injection firewalls & guardrails

Prompt Security

Lab: pending

Security platform for employee and homegrown GenAI use: prompt protection, data leak prevention and AI usage visibility.

CommercialAcquired / parentPrompt-injection firewalls & guardrails

PurpleLlama (Llama Guard, Prompt Guard, LlamaFirewall)

Lab: pending

Meta's set of open tools to assess and improve LLM security, including Llama Guard classifiers and LlamaFirewall.

Open sourcePrompt-injection firewalls & guardrails

Vigil

Lab: pending

Python library and API that scans LLM inputs for prompt injection and jailbreaks. Last code push Jan 2024.

Open sourcePrompt-injection firewalls & guardrails