Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · AI Content Detection Software

Undetectable AI vs Originality.ai

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Undetectable AI #2 in AI Content Detection Software 9.1/10 Free plan Free plan✓ 4 of 4 features Try Undetectable AI
Originality.ai #3 in AI Content Detection Software 8.8/10 Free plan Free plan✓ 3 of 4 features Visit Originality.ai

Undetectable AI leads on 0 checks, Originality.ai on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreUndetectable AI · 9.1/10
  • Free planboth
  • Most featuresUndetectable AI · 4 of 4

Undetectable AI scores higher on our rubric for ai content detection software: 9.1 against 8.8 out of 10; our editors rank them #2 and #3.

Undetectable AI is the better fit for content teams using many integrations. Originality.ai is the better fit for multilingual content and plagiarism checking.

  • Undetectable AI fits best

    Content teams using many integrations

  • Originality.ai fits best

    Multilingual content and plagiarism checking

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 Undetectable AI 9.1/10 Visit ↗ Originality.ai 8.8/10 Visit ↗
At a glance
Editor score 9.1 8.8
Ranking #2 in AI Content Detection Software #3 in AI Content Detection Software
Best for Content teams using many integrations Multilingual content and plagiarism checking
Pricing model Free plan + paid Free plan + paid
Starting price $9.99/mo —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Browser extension Cloud, Browser extension
Platforms Web, Chrome extension Web, Chrome extension
Integrations 11 integrations 4 integrations
Features Undetectable AI 4/4 · Originality.ai 3/4
File uploads ✓ (best) Not checked yet
API access ✓ ✓
Browser extension ✓ ✓
Batch scanning ✓ ✓
Specs
Supported languages Not checked yet Not checked yet
Report exports Not checked yet Not checked yet
Our review
Pros
  • Detects text from ChatGPT, GPT-4, GPT-5, Claude, Gemini, DeepSeek, and Llama
  • Supports multilingual detection, bulk scanning, files, URLs, and PDFs through the API
  • Connects with Google Docs, WordPress, Notion, Gmail, LinkedIn, and more
  • AI detection supports 30 languages, including paraphrased-content detection
  • Bulk scans, URL checks, reports, extensions, and API access support varied workflows
  • Free plan available, with Google Docs, Moodle, and Google Classroom integrations
Cons
  • Paid plans limit monthly usage by word allowance
  • The feature set may be broader than needed for simple one-off checks
  • The Chrome extension and API add workflow options that may require configuration
  • Basic limits users to 3 scans per day and 2,000 words per scan
  • Pro costs $14.95 monthly when billed month to month
  • Enterprise pricing rises to $179 per month on monthly billing
Our verdict

Undetectable AI is a web-based platform for assessing whether text is likely AI-generated. It is designed for students, educators, writers, marketers, researchers, and businesses that need to review pasted text, uploaded files, documents,…

Read the review →

Originality.ai is a web-based content verification platform for writers, editors, marketers, publishers, agencies, educators, and students. It checks text for likely AI generation and plagiarism, including paraphrased content, while also…

Read the review →
  1. Undetectable AIAI Content Detection Software 9.1Free plan
  2. Originality.aiAI Content Detection Software 8.8Free plan

Strengths and trade-offs

  • Undetectable AI — where it wins

    • Detects text from ChatGPT, GPT-4, GPT-5, Claude, Gemini, DeepSeek, and Llama
    • Supports multilingual detection, bulk scanning, files, URLs, and PDFs through the API
    • Connects with Google Docs, WordPress, Notion, Gmail, LinkedIn, and more

    Where it doesn't

    • Paid plans limit monthly usage by word allowance
    • The feature set may be broader than needed for simple one-off checks
    • The Chrome extension and API add workflow options that may require configuration

  • Originality.ai — where it wins

    • AI detection supports 30 languages, including paraphrased-content detection
    • Bulk scans, URL checks, reports, extensions, and API access support varied workflows
    • Free plan available, with Google Docs, Moodle, and Google Classroom integrations

    Where it doesn't

    • Basic limits users to 3 scans per day and 2,000 words per scan
    • Pro costs $14.95 monthly when billed month to month
    • Enterprise pricing rises to $179 per month on monthly billing

More comparisons

All AI content detection software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update