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Best GPTinf alternatives

We recommend Undetectable AI as the best GPTinf alternative. Here are 10 AI Copywriting tools, ranked, with what each costs and whether it has a free plan.

Why people look past GPTinf

  • Free humanization is limited, so regular users will likely need a paid plan
  • Some strong detector-bypass claims should be treated as vendor claims rather than guarantees
  • No public API or dedicated mobile app was confirmed
  • Some features, including plagiarism workflows, may require registration or a paid plan

The alternatives

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  1. 1

    Undetectable AI

    AI Copywriting · Starts at $9.99/mo · Free plan: Yes

    Undetectable AI is a powerful tool designed to transform AI-generated text into content that appears human-written, making it undetectable by AI content detectors.

  2. 2

    Revise

    AI Copywriting · Starts at Not listed · Free plan: Yes

    Revise is a free, browser-based AI document editor built around tracked changes.

  3. 3

    TwainGPT

    AI Copywriting · Starts at $8/mo · Free plan: Yes

    TwainGPT is a web-based writing tool built around an AI humanizer, AI detector, and writing generator workflow.

  4. 4

    HumanizeAI.pro

    AI Copywriting · Starts at $4.99/mo · Free plan: Yes

    HumanizeAI.pro is a browser-based writing refinement suite for students, writers, and content teams who want AI-assisted drafts to read more naturally while keeping a formal or academic register.

  5. 5

    Super Humanize AI

    AI Copywriting · Starts at Not listed · Free plan: Yes

  6. 6

    SellerPic

    AI Copywriting · Starts at $19.90/mo · Free plan: Yes

    SellerPic is an AI-powered image tool designed specifically for e-commerce sellers, helping transform ordinary product photos into high-quality, sales-driven visuals.

  7. 7

    Rephrase

    AI Rewriter · Starts at $19.99/mo · Free plan: No

    Rephrase is an AI-powered paraphrasing tool designed to improve text while preserving its original meaning.

  8. 8

    Jenni AI

    AI Rewriter · Starts at $15/mo · Free plan: Yes

    Jenni AI is an advanced writing assistant powered by various AI technologies, including GPT-4.

  9. 9

    Casewell

    Natural Language Processing · Starts at Not listed · Free plan: Yes

    Casewell is bankruptcy intake software for consumer bankruptcy firms that file in Best Case.

  10. 10

    RightBlogger

    Natural Language Processing · Starts at $24.99/mo · Free plan: Yes

    RightBlogger is an AI-powered platform designed to help bloggers and content creators overcome writer's block and produce content more efficiently.

Compare GPTinf, Undetectable AI, Revise side by side Open the comparison