PromptBrake vs DetectGPT

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PromptBrake compared with DetectGPT
Detail	PromptBrake	DetectGPT
What it does	Automated AI security testing for chatbots, agents, and APIs	Free AI checker to detect AI-generated text from ChatGPT, Claude, Grok, Gemini and other language models
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	Free trial: 3 scans over 7 days. $99 USD once for 5 scans valid 30 days (no renewal). $499/month for 30 scans per billing month and one active runner license (month-to-month).	Free. No account, no card required. Up to 5,000 words per run for AI detection and up to 3,000 words for plagiarism checking.
Key features	138 automated checks across 18 attack categories API endpoint and web chatbot testing Self-hosted Docker runner Evidence exports and Baseline Diff CI/CD release gate automation Findings with evidence, business impact, and remediation guidance Behavioral regression detection	Analyzes up to 5,000 words per run without account signup Detects AI writing from ChatGPT, Claude, Grok, Gemini and other LLMs Analyzes public URLs and homepages Plagiarism checker with public web overlap detection up to 3,000 words
What makes it different	Built by an application-security practitioner with GWEB certification Compare test results with Baseline Diff to verify fixes	Independent tool not affiliated with Turnitin, OpenAI or other major platforms Text scored in browser with no storage on servers Integrated plagiarism checker included as free feature
Community votes	0	0
DR (Domain Rating by Ahrefs)	33 +1 (up) since last check	39 no change since last check
Trust Flow (Majestic)	12	13
Citation Flow (Majestic)	29	26
Referring domains (Majestic)	46	35

5 details filled in for both companies.

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