Originality.ai™ vs DetectGPT

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

Originality.ai™ compared with DetectGPT
Detail	Originality.ai™	DetectGPT
What it does	Most accurate AI detector for identifying ChatGPT, GPT-5, Gemini and other AI-generated content	Free AI checker to detect AI-generated text from ChatGPT, Claude, Grok, Gemini and other language models
Stage	Not given	Not given
Founded	2022	Not given
Based in	CA	Not given
Pricing model	Freemium	Free
Pricing	Not given	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	AI Checker - detect ChatGPT, GPT-5, Gemini, Claude, Grok and other AI writing tools Plagiarism Checker - identify plagiarism and duplicated content Writing Replay - shows authorship and writing process in browser extension Chrome Extension and Google Docs integration Moodle plugin for academic integrity checking Fact & AI Hallucination Checker Grammar and Spelling Checker Readability Checker and Content Quality Score API access for developers and integrations Bulk Scan for multiple texts at once	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	Proven accuracy in peer-reviewed third-party studies Trained on adversarial data to detect AI paraphrasing attempts Writing Replay feature proves human authorship Multi-product platform with plagiarism, grammar, fact-checking and readability tools Enterprise security with military-grade 256-bit encryption	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)	79 no change since last check	39 no change since last check
Trust Flow (Majestic)	24	13
Citation Flow (Majestic)	49	26
Referring domains (Majestic)	7344	35

4 details filled in for both companies.

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