Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · LLM Security Tools

LLM Guard vs Noma Security

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score LLM Guard #2 in LLM Security Tools 9.2/10 Open source ✓ 4 of 5 features Visit LLM Guard
Noma Security #6 in LLM Security Tools 8.8/10 Pricing on request ✓ 5 of 5 features Visit Noma Security

LLM Guard leads on 0 checks, Noma Security 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 scoreLLM Guard · 9.2/10
  • Most featuresNoma Security · 5 of 5

LLM Guard scores higher on our rubric for llm security tools: 9.2 against 8.8 out of 10; our editors rank them #2 and #6.

On deployment model, Noma Security gives you Hybrid where LLM Guard offers Self-hosted.

LLM Guard is the better fit for self-hosted prompt and output scanning. Noma Security is the better fit for enterprises securing agents and AI supply chains.

  • LLM Guard fits best

    Self-hosted prompt and output scanning

  • Noma Security fits best

    Enterprises securing agents and AI supply chains

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature LLM Guard 9.2/10 Visit ↗ Noma Security 8.8/10 Visit ↗
At a glance
Editor score 9.2 8.8
Ranking #2 in LLM Security Tools #6 in LLM Security Tools
Best for Self-hosted prompt and output scanning Enterprises securing agents and AI supply chains
Pricing model Free Paid
Starting price Open source Pricing on request
Free plan Not checked yet Not checked yet
Free trial — —
Deployment Self-hosted Cloud, Self-hosted
Integrations 4 integrations 80+ integrations
Built for Small business, Mid-market, Enterprise Enterprise
Features LLM Guard 4/5 · Noma Security 5/5
Prompt injection defense ✓ ✓
PII redaction ✓ ✓
Secrets detection ✓ ✓
Output guardrails ✓ ✓
Model-abuse detection Not checked yet ✓ (best)
Specs
Deployment model Self-hosted Hybrid
Our review
Pros
  • Detects direct and indirect prompt injection attempts
  • Redacts PII, API tokens, private keys, and high-entropy strings
  • Integrates with OpenAI, LangChain, LlamaIndex, and LiteLLM
  • Discovers AI assets across cloud, SaaS, endpoints, and code environments
  • Combines runtime detection, masking, guardrails, and access policies
  • Assesses AI supply-chain and MCP risks with compliance reporting
Cons
  • The project and associated models were archived on July 9, 2026
  • No longer under active development or maintenance
  • Requires self-hosted deployment through a local API or Docker
  • Pricing requires contact with sales
  • There is no open-source edition
  • Its enterprise scope may exceed lightweight security needs
Our verdict

LLM Guard is an open-source Python toolkit from Protect AI for securing applications that use large language models. It is designed for teams and developers who need self-hosted scanning of prompts and model outputs rather than a hosted…

Read the review →

Noma Security is an enterprise platform for discovering, governing, testing, and protecting AI applications and agents. It covers homegrown AI, SaaS agents, endpoint agents, models, MCP servers, tools, and data connections. The platform is…

Read the review →
  1. LLM GuardLLM Security Tools 9.2Open source
  2. Noma SecurityLLM Security Tools 8.8Pricing on request

Strengths and trade-offs

  • LLM Guard — where it wins

    • Detects direct and indirect prompt injection attempts
    • Redacts PII, API tokens, private keys, and high-entropy strings
    • Integrates with OpenAI, LangChain, LlamaIndex, and LiteLLM

    Where it doesn't

    • The project and associated models were archived on July 9, 2026
    • No longer under active development or maintenance
    • Requires self-hosted deployment through a local API or Docker

  • Noma Security — where it wins

    • Discovers AI assets across cloud, SaaS, endpoints, and code environments
    • Combines runtime detection, masking, guardrails, and access policies
    • Assesses AI supply-chain and MCP risks with compliance reporting

    Where it doesn't

    • Pricing requires contact with sales
    • There is no open-source edition
    • Its enterprise scope may exceed lightweight security needs

More comparisons

All LLM security tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update