PromptGuard vs Basilisk

PromptGuard9.3Visit Basilisk7.9Visit

Higher score PromptGuard #1 in AI Security Testing Tools 9.3/10 Free plan Free plan✓ 5 of 5 features Visit PromptGuard

vs

Basilisk #13 in AI Security Testing Tools 7.9/10 Free plan Free plan✓ 5 of 5 features Visit Basilisk

• PromptGuard fits best

  Teams wanting broad, affordable red teaming

• Basilisk fits best

  Open-source teams needing broad local testing

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	PromptGuard 9.3/10 Visit ↗	Basilisk 7.9/10 Visit ↗
At a glance
Editor score	9.3	7.9
Ranking	#1 in AI Security Testing Tools	#13 in AI Security Testing Tools
Best for	Teams wanting broad, affordable red teaming	Open-source teams needing broad local testing
Pricing model	Free plan + paid	Free
Starting price	$19/seat/mo	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Self-hosted, Desktop, Browser extension	Self-hosted, Desktop
Platforms	Web, Windows, macOS, Chrome extension	Windows, macOS, Linux
Support	Email, Community, Docs	Email
Integrations	12 integrations	12 integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features PromptGuard 5/5 · Basilisk 5/5
Prompt injection tests	✓	✓
Jailbreak tests	✓	✓
Data leakage tests	✓	✓
Unsafe output tests	✓	✓
Custom test cases	✓	✓
Specs
Deployment mode	Both	Self_hosted
Our review
Pros	20+ attack vectors plus custom and fuzzed adversarial variants CI/CD regression testing, security grades, and vulnerability reports Web, desktop, browser extension, API, and self-hosted deployment	Evolutionary prompt search covers injection, jailbreak, RAG, and leakage attacks Works across Windows, macOS, Linux, hosted models, and local runtimes Exports HTML, JSON, SARIF, Markdown, and PDF reports for security workflows
Cons	Free plan limits usage to 20,000 scans per month and one API key Advanced capabilities are concentrated in paid and higher-tier plans Premium offers no listed feature highlights	Self-hosted deployment requires teams to manage the operating environment AGPL-3.0 licensing may require review before commercial adoption Its broad module set may require security expertise to configure and interpret
Our verdict	PromptGuard is an AI security platform for teams testing and protecting applications that use large language models. It sits between applications and LLM providers to detect prompt injection, jailbreak attempts, PII exposure, data… Read the review →	Basilisk is an open-source AI red teaming and LLM security testing framework for security researchers, penetration testers, and defensive teams. It runs on Windows, macOS, and Linux, and supports hosted and local language models through… Read the review →

Strengths and trade-offs

• PromptGuard — where it wins

  • 20+ attack vectors plus custom and fuzzed adversarial variants
  • CI/CD regression testing, security grades, and vulnerability reports
  • Web, desktop, browser extension, API, and self-hosted deployment

  Where it doesn't

  • Free plan limits usage to 20,000 scans per month and one API key
  • Advanced capabilities are concentrated in paid and higher-tier plans
  • Premium offers no listed feature highlights

• Basilisk — where it wins

  • Evolutionary prompt search covers injection, jailbreak, RAG, and leakage attacks
  • Works across Windows, macOS, Linux, hosted models, and local runtimes
  • Exports HTML, JSON, SARIF, Markdown, and PDF reports for security workflows

  Where it doesn't

  • Self-hosted deployment requires teams to manage the operating environment
  • AGPL-3.0 licensing may require review before commercial adoption
  • Its broad module set may require security expertise to configure and interpret

• PromptGuard9.3/10 · Free plan

  Broad AI security testing with flexible deployment and a low-cost paid entry tier.

  Visit PromptGuardFull verdict →
• Basilisk7.9/10 · Free plan

  Broad self-hosted AI security testing with evolutionary adversarial search and CI/CD support.

  Visit BasiliskFull verdict →