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Head-to-head · AI Red Teaming Tools

Promptfoo vs garak

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Promptfoo #2 in AI Red Teaming Tools 9.3/10 Free plan Free plan✓ 0 of 2 features Visit Promptfoo
garak #8 in AI Red Teaming Tools 8.6/10 Free plan Free plan✓ 0 of 2 features Visit garak

Promptfoo leads on 0 checks, garak on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePromptfoo · 9.3/10
  • Free planboth

Promptfoo scores higher on our rubric for ai red teaming tools: 9.3 against 8.6 out of 10; our editors rank them #2 and #8.

Promptfoo is the better fit for broad open-source AI evaluation and red teaming. garak is the better fit for free self-hosted LLM probing.

  • Promptfoo fits best

    Broad open-source AI evaluation and red teaming

  • garak fits best

    Free self-hosted LLM probing

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Side by side

Feature Promptfoo 9.3/10 Visit ↗ garak 8.6/10 Visit ↗
At a glance
Editor score 9.3 8.6
Ranking #2 in AI Red Teaming Tools #8 in AI Red Teaming Tools
Best for Broad open-source AI evaluation and red teaming Free self-hosted LLM probing
Pricing model Free plan + paid Free
Starting price — Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Self-hosted
Platforms Web Windows, macOS, Linux
Support Community, Docs Email, Community, Docs
Integrations 12 integrations 8 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Promptfoo 0/2 · garak 0/2
Custom tests Not checked yet Not checked yet
Continuous monitoring Not checked yet Not checked yet
Specs
Attack categories Not checked yet Not checked yet
Target systems Not checked yet Not checked yet
Automation level Not checked yet Not checked yet
Deployment Not checked yet Not checked yet
Report exports Not checked yet Not checked yet
Our review
Pros
  • Combines automated red teaming with vulnerability scanning and safety evaluations
  • Supports custom metrics, LLM judging, human review, and CI/CD quality gates
  • Offers broad provider, CI/CD, API, web, and self-hosted integrations
  • Free open-source access to adversarial probes and detectors
  • Supports hosted and local model interfaces across major integrations
  • Produces structured JSONL reports and hit logs
Cons
  • Community red teaming includes up to 10,000 probes per month
  • Team sharing and continuous monitoring require the Enterprise plan
  • Enterprise and On-Premise pricing is custom
  • Self-hosted operation leaves infrastructure and maintenance with the team
  • Command-line workflow may not suit buyers seeking a graphical console
  • Effective coverage depends on selecting suitable probes and detectors
Our verdict

Promptfoo is an open-source CLI and library for evaluating, testing, and red-teaming large-language-model applications. It is designed for teams building AI applications that need to benchmark prompts, models, and RAG pipelines, inspect…

Read the review →

garak is an open-source command-line toolkit for assessing the security and robustness of large language models and language-model systems. It is designed for researchers, developers, and security teams evaluating LLM applications, whether…

Read the review →
  1. PromptfooAI Red Teaming Tools 9.3Free plan
  2. garakAI Red Teaming Tools 8.6Free plan

Strengths and trade-offs

  • Promptfoo — where it wins

    • Combines automated red teaming with vulnerability scanning and safety evaluations
    • Supports custom metrics, LLM judging, human review, and CI/CD quality gates
    • Offers broad provider, CI/CD, API, web, and self-hosted integrations

    Where it doesn't

    • Community red teaming includes up to 10,000 probes per month
    • Team sharing and continuous monitoring require the Enterprise plan
    • Enterprise and On-Premise pricing is custom

  • garak — where it wins

    • Free open-source access to adversarial probes and detectors
    • Supports hosted and local model interfaces across major integrations
    • Produces structured JSONL reports and hit logs

    Where it doesn't

    • Self-hosted operation leaves infrastructure and maintenance with the team
    • Command-line workflow may not suit buyers seeking a graphical console
    • Effective coverage depends on selecting suitable probes and detectors

More comparisons

All AI red teaming tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update