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Garak vs Proton

An open-source LLM vulnerability scanner (by NVIDIA). Garak probes AI models for weaknesses like prompt injection, jailbreaks, data leakage and toxic output, helping teams red-team and secure their LLM applications before shipping — free.

Winner: Proton(⭐ 4.7)

🧠 Expert verdict

Our expert verdict: Proton is the stronger all-round choice, scoring 4.7/5 versus 4.5/5 for Garak. If budget is your priority, Garak (Free / Open Source) is the more affordable option. Choose Proton if you want the best cybersecurity tool overall; pick Garak if "Scans LLMs for security flaws" matters more for your workflow.

Garak

An open-source LLM vulnerability scanner (by NVIDIA). Garak probes AI models for weaknesses like prompt injection, jailbreaks, data leakage and toxic output, helping teams red-team and secure their LLM applications before shipping — free.

Visit Garak

Proton

Privacy-first suite — encrypted email, VPN, cloud storage and password manager with zero-knowledge.

Visit Proton
CriteriaGarakProton
Rating
4.5/5
4.7/5
Pricing
Free / Open Source
Free / $9.99/mo
Category
cybersecurity
cybersecurity
Popularity
👍 Medium
🔥 Very High
Value for Money
⭐⭐⭐ Excellent
⭐⭐ Good
📅 Release Date
2023
🔄 Last Update
Aug 2026
Company
NVIDIA
Founded
2023
API Access
No
No
Mobile App
No
No

Garak

Pros

  • +Scans LLMs for security flaws
  • +Tests prompt injection & jailbreaks
  • +From NVIDIA, open source
  • +Great for red-teaming AI apps
  • +Free to use

Cons

  • For security/ML engineers
  • CLI/technical tool
  • Needs model access
  • Interpretation requires expertise

🎯 Best forGarak

LLM security testingRed-teaming AI appsPrompt-injection checksPre-launch safety audits

🏷️ TagsGarak

Open SourceCybersecurityLLM SecurityRed-teaming

Our Verdict

After comparing ratings, pricing and features, Proton comes out ahead with a 4.7/5 rating. It is the better choice for most users.

Expert take on each tool

📌 Garak

Garak is the leading open-source LLM vulnerability scanner: probe your AI models for prompt injection, jailbreaks and leaks before you ship, free and backed by NVIDIA. Essential for anyone deploying LLM apps responsibly.

Frequently Asked Questions

Which is better: Garak or Proton?

Proton has the higher user rating (4.7/5 vs 4.5/5), making it the stronger overall pick. That said, Garak can still be the better fit depending on your budget and specific needs — see the full comparison above.

Is Garak or Proton cheaper?

Garak (Free / Open Source) is generally more budget-friendly than Proton (Free / $9.99/mo). If cost is your main concern, Garak is worth trying first — but compare the feature sets above to confirm it covers what you need.

Can I switch from Garak to Proton?

Yes — switching between Garak and Proton is usually straightforward since both are cybersecurity tools with similar core workflows. Most users can export their data and get started with Proton within a day; just check Proton's free plan before committing to a paid tier.