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Zero GPT

Simple, Transparent Pricing

Start free on every feature. Upgrade when you need higher volumes or deeper scans.

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3 free scans per feature · text, image & video detection · grammar checker included · scan history on this device

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MonthlyAnnually30% off annually

Loupe

Close-inspection scanning for individual writers and students.

$13.99/mo

  • 100,000 characters per AI detection scan
  • 50 batch files per scan
  • 750 plagiarism-check words (one-time)
  • 1,500 summarizer / 300 paraphraser words
  • 2,000 Zero GPT Assistant chat prompts
Choose Loupe
Most popular

Caliper

Precision measurement for regular editors and content teams.

$22.99/mo

  • 100,000 characters per AI detection scan
  • 60 batch files per scan
  • 35,000 plagiarism-check words / month
  • 1,500 summarizer / 300 paraphraser words
  • 2,000 Zero GPT Assistant chat prompts
Choose Caliper

Spectrometer

Full forensic instrumentation for power users and small teams.

$29.99/mo

  • 150,000 characters per AI detection scan
  • 75 batch files per scan
  • 60,000 plagiarism-check words / month
  • 10,000 summarizer / 5,000 paraphraser words
  • WhatsApp / Telegram bot access
Choose Spectrometer
FeatureLoupeCaliperSpectrometer
Ad-free experience
Characters per AI detection scan100,000100,000150,000
Batch files per scan506075
PDF report generation
Plagiarism Checker words750 (one-time only)35,000 / month60,000 / month
Deep-Scan Mode (Summarizer & Paraphraser)
AI Summarizer words1,5001,50010,000
AI Paraphraser words3003005,000
Paraphrase modes2 modes2 modesUnlimited modes
Grammar & Spell Check words1,0001,00010,000
Zero GPT Assistant chat prompts2,0002,0003,500
Humanize AI text
WhatsApp / Telegram bot access