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Head-to-head · AI Red Teaming Tools

Promptfoo vs ProofLayer

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks 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
ProofLayer #3 in AI Red Teaming Tools 9.1/10 Free plan · pricing on request Free plan✓ 2 of 2 features Visit ProofLayer

Promptfoo leads on 0 checks, ProofLayer on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePromptfoo · 9.3/10
  • Free planboth
  • Most featuresProofLayer · 2 of 2

Promptfoo scores higher on our rubric for ai red teaming tools: 9.3 against 9.1 out of 10; our editors rank them #2 and #3.

Promptfoo is the better fit for broad open-source AI evaluation and red teaming. ProofLayer is the better fit for continuous red teaming for agents and MCP.

  • Promptfoo fits best

    Broad open-source AI evaluation and red teaming

  • ProofLayer fits best

    Continuous red teaming for agents and MCP

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 Promptfoo 9.3/10 Visit ↗ ProofLayer 9.1/10 Visit ↗
At a glance
Editor score 9.3 9.1
Ranking #2 in AI Red Teaming Tools #3 in AI Red Teaming Tools
Best for Broad open-source AI evaluation and red teaming Continuous red teaming for agents and MCP
Pricing model Free plan + paid Free plan + paid
Starting price — —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web Web
Compliance SOC 2, ISO 27001 SOC 2, ISO 27001, SSO/SAML
Integrations 12 integrations 6 integrations
Built for Solo, Small business, Mid-market, Enterprise Small business, Enterprise
Features Promptfoo 0/2 · ProofLayer 2/2
Custom tests Not checked yet ✓ (best)
Continuous monitoring Not checked yet ✓ (best)
Specs
Attack categories Not checked yet prompt injection; jailbreaks; data exfiltration; tool abuse; RAG poisoning; memory injection
Target systems Not checked yet LLM APIs; multi-agent orchestrators; MCP servers; ReAct/LangChain agents; RAG pipelines; AgentDojo and custom targets
Automation level Not checked yet Automated
Deployment Not checked yet Hybrid
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
  • 1,700+ detection rules with CLI and MCP scanning
  • Verified exploit replay traces and audit-ready evidence
  • Tests prompt injection, exfiltration, tool abuse, RAG, and memory attacks
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
  • Enterprise pricing requires contacting sales
  • Advanced reporting and SSO/SAML are limited to Enterprise
  • Its focus is AI security rather than general application testing
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 →

ProofLayer is an AI security platform for teams testing LLM applications, multi-agent systems, RAG pipelines, and MCP servers. It runs automated attack campaigns against LLM APIs, agent orchestrators, MCP servers, RAG pipelines, and custom…

Read the review →
  1. PromptfooAI Red Teaming Tools 9.3Free plan
  2. ProofLayerAI Red Teaming Tools 9.1Free plan · pricing on request

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

  • ProofLayer — where it wins

    • 1,700+ detection rules with CLI and MCP scanning
    • Verified exploit replay traces and audit-ready evidence
    • Tests prompt injection, exfiltration, tool abuse, RAG, and memory attacks

    Where it doesn't

    • Enterprise pricing requires contacting sales
    • Advanced reporting and SSO/SAML are limited to Enterprise
    • Its focus is AI security rather than general application testing
  • Promptfoo9.3/10 · Free plan

    A broad open-source choice for evaluating and red-teaming AI applications.

    Visit PromptfooFull verdict →
  • ProofLayer9.1/10 · Free plan · pricing on request

    A focused platform for automated, continuous testing of agents, MCP servers, and LLM applications.

    Visit ProofLayerFull verdict →

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