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Head to head · 2026

Dechecker vs GPTZero

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Dechecker

Sentence-level AI detection across ChatGPT, Claude and Gemini output, paired with one-click humanization rewrites

3.7Free

Visit Dechecker (opens Dechecker in a new tab)

GPTZero

An AI detector built at Princeton that identifies LLM-generated text and now backs Superhuman's authenticity tools

4.4$15/mo

Visit GPTZero (opens GPTZero in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: Dechecker does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    GPTZero

    3.7 against 4.4

  • Same job?

    Yes

    Both are Writing tools

Side by side

Compared onDecheckerGPTZero
Our rating3.74.4Better
Starts atFree$15/mo
Free planYesYes
CategoryWritingWriting
PlansFreeFrom $15/mo
Key features
  • Sentence-level AI detection across ChatGPT, Claude and Gemini output
  • One-click humanization rewrite suggestions
  • Bulk file upload and batch analysis
  • Downloadable detection reports
  • Privacy-focused processing without data storage
  • AI-generated text detection across ChatGPT, Claude, Gemini, and other major LLMs
  • Plagiarism detection bundled alongside AI detection in the same scan
  • Hallucination detection that flags unsupported or fabricated claims in a document
  • Chrome extension for scanning text without leaving the page it appears on
  • API access for institutions screening submissions at scale
Pros
  • Sentence-level flagging is more actionable than one whole-document score
  • No data storage is a real privacy plus for unpublished drafts
  • Batch analysis supports real editorial workflows, not just one-off checks
  • One of the most established and widely recognized names in AI detection, with a large existing user base
  • Combines AI detection with plagiarism and hallucination checks in a single workflow
  • Free tier is usable for individual, lower-volume checks without a subscription
Cons
  • AI detectors carry real false-positive/false-negative rates industry-wide
  • Known to misflag non-native English writing more often
  • Free tier limited to 5 daily checks for guests
  • AI detection as a category carries an inherent false-positive risk on any tool, including this one
  • Full-length document scanning beyond the free character limit requires a paid plan
  • Recent acquisition introduces some uncertainty about how the standalone product evolves under Superhuman
CompanyDecheckerGPTZero (Superhuman), founded 2023

Prices come from each vendor's pricing page, last checked 20260824. Check the vendor before you buy.

FAQ

Questions people ask

Is Dechecker better than GPTZero?

In our reviews Dechecker scores 3.7 and GPTZero scores 4.4. The better pick depends on the job. Dechecker: Sentence-level AI detection across ChatGPT, Claude and Gemini output, paired with one-click humanization rewrites. GPTZero: An AI detector built at Princeton that identifies LLM-generated text and now backs Superhuman's authenticity tools.

Which is cheaper, Dechecker or GPTZero?

Dechecker: free. GPTZero: from $15/mo.

Do Dechecker and GPTZero have free plans?

Yes, both have a free plan.

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