LLM Firewall and Guardrail Platforms in AI answers

Data as of Oct 21, 2026Based on 313 AI responsesReviewed by Dimitry Apollonsky

AI summary

Lakera Guard holds a narrow lead over NVIDIA NeMo Guardrails for real-time prompt injection detection and low-latency filtering. For scanning inputs and outputs to block PII, Presidio is the usual answer.

What’s changing · since July

Since July, Amazon Bedrockrising has become one of the three most named options for stopping prompt injection and leakage, while Check Pointrising is now among the three most named for production monitoring. Cloudflarerising is also now among the three most named for input sanitization against prompt injection, while PromptGuardfalling is named only occasionally.

Most-mentioned brands

Rank and Mentioned in · since Jul 5

#	Brand	Recommended for	Mentioned in
1	Lakera GuardLakera product line 55% real-time prompt injection detection, jailbreak prevention, and low-latency API filtering	real-time prompt injection detection, jailbreak prevention, and low-latency API filtering	55%
1	NVIDIA NeMo GuardrailsNVIDIA product line 53% programmable topical rails and conversational boundaries using open-source rules	programmable topical rails and conversational boundaries using open-source rules	53%
3	Lakera 33% ultra-low latency prompt injection protection and dedicated runtime security	ultra-low latency prompt injection protection and dedicated runtime security	33%
3	Amazon BedrockAmazon product line 29% native prompt attack filters and input-output guardrails on AWS	native prompt attack filters and input-output guardrails on AWS	29%
3	Prompt Security 27% indirect prompt injection defense, prompt hardening, and input inspection	indirect prompt injection defense, prompt hardening, and input inspection	27%
6	Check Point 25% unified enterprise runtime protection across external chatbots and AI agents	unified enterprise runtime protection across external chatbots and AI agents	25%
7	Azure AIMicrosoft product line 19% managed prompt shields and content safety within Azure environments	managed prompt shields and content safety within Azure environments	19%
7	Palo Alto Networks 15% runtime prompt injection blocking and integrated enterprise threat logging	runtime prompt injection blocking and integrated enterprise threat logging	15%
7	Protect AI 15% runtime input sanitization and AI application supply chain defense	runtime input sanitization and AI application supply chain defense	15%
7	LLaMA Guard 14% input and output safety classification for open model deployments	input and output safety classification for open model deployments	14%
11	Cloudflare 13%		13%
11	Cloudflare AI Security for AppsCloudflare product line 12%		12%
11	HiddenLayer 12%		12%
11	Microsoft AzureMicrosoft product line 10%		10%
11	Guardrails AI 9%		9%
16	Google Cloud Model ArmorAlphabet product line 9%		9%
16	Bifrost by Maxim AI 9%		9%
16	Cisco AI DefenseCisco product line 9%		9%
16	Akamai Firewall for AIAkamai product line 7%		7%
16	F5 AI GuardrailsF5 product line 7%		7%
16	Lasso Security 7%		7%
16	Check Point AI Agent SecurityCheck Point product line 7%		7%
16	Akamai 6%		6%
16	AccuKnox 6%		6%
16	ProtectAI LLM GuardProtect AI product line 6%		6%
26	LLMGuard 6%		6%
26	Promptfoo 6%		6%
26	Cloudflare Firewall for AICloudflare product line 5%		5%
26	Aporia 5%		5%
26	Galileo AI 5%		5%
26	F5 5%		5%
26	Azure Prompt Shield 5%		5%
26	Llama Firewall 5%		5%
26	Llama Prompt Guard 2Meta product line 5%		5%
26	Microsoft Prompt Shields 4%		4%
26	NVIDIA 4%		4%
26	NeuralTrust 4%		4%
26	Rebuff 4%		4%
26	Datadog AI GuardDatadog product line 4%		4%
26	Witness AI 4%		4%
26	Palo Alto Networks Prisma AIRSPalo Alto Networks product line 4%		4%
26	CalypsoAI 4%		4%
26	Prompt-Guard · huggingface.co 4%		4%
26	SentinelOne 4%		4%
26	Meta AI · huggingface.co 4%		4%
26	Radware 4%		4%
47	Check Point MDR/MPRCheck Point product line 3%		3%
47	Robust Intelligence 3%		3%
47	PromptShields 3%		3%
47	PromptArmor 3%		3%
47	NVIDIA Garak 3%		3%
47	PromptGuard · promptguard.co 3%		3%
47	Portkey AI 3%		3%
47	Microsoft Defender for AI 3%		3%
47	Cloudflare AI GatewayCloudflare product line 3%		3%
47	Pillar Security 3%		3%
47	Microsoft 3%		3%
47	AWSAmazon product line 3%		3%
47	Silker AI 3%		3%
47	WrapSec 3%		3%
47	Noma Security 2%		2%
47	Cisco 2%		2%
47	SafePrompt 2%		2%
47	LiteLLM 2%		2%
47	Securiti 2%		2%
47	NVIDIA Inference (NVIDIA Inference Stack)NVIDIA product line 2%		2%
47	Meta 2%		2%
47	ZeroTrusted.ai 2%		2%
47	Maxim AI 2%		2%
47	OpenGuardrails 2%		2%
47	WalledEval 2%		2%
47	Netskope 2%		2%
47	ZeroPath 2%		2%
47	Openlayer 2%		2%
47	Kong AI GatewayKong product line 2%		2%
76	Microsoft Purview Records ManagementMicrosoft product line 1%		1%
76	CrowdStrike 1%		1%
76	Microsoft PurviewMicrosoft product line 1%		1%
76	Netskope AI GuardrailsNetskope product line 1%		1%
76	Kataiq 1%		1%
76	Mindgard 1%		1%
76	Microsoft EntraMicrosoft product line 1%		1%
76	Dynamo GuardDynamo AI product line 1%		1%
76	Arthur ShieldArthur product line 1%		1%
76	Pangea Cloud 1%		1%
76	Palo Alto Networks PrismaPalo Alto Networks product line 1%		1%
76	AI EdgeLabs 1%		1%
76	Meta AI · llama.com 1%		1%
76	Google Cloud PlatformAlphabet product line 1%		1%
76	Arthur 1%		1%
76	OpenAI 1%		1%
76	Microsoft Entra AI GatewayMicrosoft product line 1%		1%
76	Nightfall 1%		1%
76	Qualys TotalAIQualys product line 1%		1%
76	Google CloudAlphabet product line 1%		1%
76	FilterPrompt 1%		1%
76	Prisma CloudPalo Alto Networks product line 1%		1%
76	Radware LLM FirewallRadware product line 1%		1%
76	Zenity 1%		1%
76	Datadog 1%		1%

Who leads each AI engine

ChatGPT SearchChatGPT Search: =1Lakera Guard Lakera
Google AI ModeGoogle AI Mode: NVIDIA NeMo Guardrails

Mentioned in on each engineChatGPT SearchGoogle AI Mode

Widest split: NVIDIA NeMo Guardrails, 38% on ChatGPT Search and 69% on Google AI Mode.

Mentioned in on each AI engine, by brand
Brand	ChatGPT Search	Google AI Mode
Lakera Guard	50%	60%
NVIDIA NeMo Guardrails	38%	69%
Lakera	43%	22%
Prompt Security	33%	21%
Amazon Bedrock	33%	25%
Check Point	39%	11%
Azure AI	9%	28%
LLaMA Guard	Outside ChatGPT Search's top 25	27%
Palo Alto Networks	21%	8%
Protect AI	17%	12%

Latest insights

Weeks of Aug 24 – Sep 6, 2026 · Since Jul 5

NVIDIA NeMo Guardrails Gap between platforms: Google AI Mode now mentions NVIDIA NeMo Guardrails 30.4 points more often than ChatGPT Search in LLM Firewall and Guardrail Platforms, a narrowed gap
Lakera Guard Gap between platforms: The platform gap for Lakera Guard in LLM Firewall and Guardrail Platforms narrowed to 12.6 points, Google AI Mode ahead
Lakera Guard Gaining: Lakera Guard moved up 1 place to rank #1 of 100 in LLM Firewall and Guardrail Platforms
Prompt Security Gap between platforms: Prompt Security's platform gap in LLM Firewall and Guardrail Platforms widened: ChatGPT Search 34.4%, Google AI Mode 21.5%
Check Point Gap between platforms: Check Point's platform gap in LLM Firewall and Guardrail Platforms narrowed: ChatGPT Search 38.8%, Google AI Mode 10.5%

and 7 more insightssee the ranking

Market map

Mentioned in · since Jul 5

Leading brands by topic

Prompt injection detection and input sanitizationLed byLakera Guard
Llm guardrail platformsLed byNVIDIA

Questions by topic1

Prompt injection detection and input sanitization
- Which platforms offer real-time monitoring and blocking of malicious prompt injection attempts for production LLM applications?
- I need a tool to sanitize inputs and detect prompt injections in my production LLM app. What options are available for real-time blocking?
- Are there any solutions for real-time prompt injection detection and sanitization that I can integrate into a production LLM environment?
- I need to monitor our production LLM for prompt injection attacks. What LLM firewall or security service is best for real-time protection?
- We are worried about prompt injection attacks exposing our system prompts. Who offers "AI firewalls" for input sanitization?
- My goal is to detect prompt injection and jailbreak attempts automatically. What is the best LLM firewall with real-time threat detection?

We need a security layer that can be deployed in front of our LLM to block prompt injection without adding significant latency. Which vendors provide high-performance LLM firewalls?
Which security platforms are best for protecting against indirect prompt injection in retrieval-augmented generation (RAG) pipelines?
Which guardrail platform protects LLM apps from prompt injection and leakage?
I need a compliance tool that scans all inputs/outputs to our LLM for PII and blocks it.

Sources AI cites100

53% of citations point at the ranked brands’ own sites. arxiv.org, youtube.com, appsecsanta.com are the most-cited sites outside the ranked brands’ own domains.

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