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Alternatives · Writing

Originality.ai alternatives

As of Nov 13, 2026, the best Originality.ai alternative for most people is Grammarly (3.0 GPA), second in our ranking of writing tools. It's also the best free one.

Originality.ai compared with 4 alternatives: GPTZero, Winston AI, Pangram and Grammarly.

Originality.ai has a free plan. Paid plans start at $12.95 per month, billed annually ($14.95 billed monthly). 3 of the 4 alternatives are free or have a free plan. One more offers a free trial.

Listings checked up to Nov 13, 2026 · Where the facts come from

Black Friday: is there a Originality.ai sale?

At a glance

ToolPriceFree planRuns on
Originality.aiThis toolFree plan · from $12.95/moYesWeb, Browser extension
GPTZeroFree planYesWeb, Browser extension
Winston AIFree trial · from $10/moTrial onlyWeb, Browser extension
PangramFree plan · from $15/moYesWeb, Browser extension
GrammarlyFree plan · from $12/moYesWeb, macOS, Windows, iOS, Android, Browser extension

Price against what you get

Originality.ai starts at $12.95 a month and scores 2.7 out of 4 on features, ease of use and platforms. 1 of the 3 alternatives on this chart scores higher and starts lower: Grammarly.

Winston AI starts lower without scoring higher.

Features, ease of use and platforms, averaged

D1.0C2.0B3.0A4.0Free$0.5$1$2$5$10$20$50$100More for lessCosts more, scores moreCosts less, scores lessCosts more, scores lessOriginality.aiWinston AIPangramGrammarly

What paid plans start at, a month (each step along is roughly double) →

  • The best score at each price
  • Has a free plan
  • No free plan
The full chart of writing tools, and the best at every price

How each one differs from Originality.ai

  1. GPTZero

    AI-writing detector with plagiarism, writing replay and an API

    • GPTZero does not cover reports, which Originality.ai does.

    Suits: Teachers checking student work for AI use

    GPTZero vs Originality.aiGPTZero pricing and details

  2. Winston AI

    AI text and image detector with a plagiarism checker

    • Winston AI starts at $10 per month, billed annually ($18 billed monthly).
    • Winston AI has no free plan, only a free trial, unlike Originality.ai.
    • Winston AI does not cover reports, which Originality.ai does.

    Suits: Teachers and editors who need to review submitted writing for AI use

    Winston AI vs Originality.aiWinston AI pricing and details

  3. Pangram

    Detects AI-written text and images, with a free daily allowance

    • Pangram starts at $15 per month, billed annually ($20 billed monthly).
    • Pangram does not cover grammar & style and reports, which Originality.ai does.

    Suits: Teachers and professors checking student work for AI writing

    Pangram vs Originality.aiPangram pricing and details

  4. Grammarly

    Writing assistant for grammar, tone and rewrites in any app

    • Grammarly starts at $12 per member / month, billed annually.
    • Grammarly also lists macOS, Windows, iOS and Android apps.
    • Grammarly also covers AI agents, citations and documents.
    • Grammarly does not cover reports, which Originality.ai does.

    Suits: People who write across many apps and want the same checks in each

    Grammarly vs Originality.aiGrammarly pricing and details

Limits worth knowing in Originality.ai

  • Credits are metered: 1 credit equals 100 words, and Pro credits expire at the end of each month.
  • Pay-as-you-go credits are bought once and expire two years after purchase; their price was not read.
  • The Free plan's allowance appears twice on the pricing page with different figures.
  • API access is listed only on Enterprise, and extra team seats cost extra on both paid plans.
Originality.ai pricing and details

Common questions

What are the alternatives to Originality.ai?

The alternatives to Originality.ai in this directory are GPTZero, Winston AI, Pangram and Grammarly. Each one has a side-by-side comparison with Originality.ai.

Is there a free alternative to Originality.ai?

Yes. GPTZero, Pangram and Grammarly have a free plan alongside paid ones.

Which Originality.ai alternatives work on Windows?

The Originality.ai listing does not include a Windows app. Grammarly lists one.

Which Originality.ai alternatives work on macOS?

The Originality.ai listing does not include a macOS app. Grammarly lists one.

When were these prices checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 13, 2026. Vendors change prices without notice, so confirm on their site before you buy.