GPTinf vs ProofWrite AI (2026): Pricing, Features & Which to Choose

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
ProofWrite AI
From $9.99/mo against from $19/mo
Free plan
ProofWrite AI
Only ProofWrite AI has one
Higher rating
ProofWrite AI
3.5 against 3.9
Same job?
Yes
Both are Writing tools

Side by side

Compared on	GPTinf	ProofWrite AI
Our rating	3.5	3.9Better
Starts at	$19/mo	$9.99/moBetter
Free plan	No	YesBetter
Category	Writing	Writing
Plans	From $19/mo	From $9.99/mo
Key features	Rewrites AI-generated text using a non-AI algorithm targeting perplexity and burstiness Eight distinct rewrite modes for different tone and style outcomes Built-in AI detector that scores text for AI-pattern probability Plagiarism checker to confirm originality alongside humanization Browser-based editor with no software installation required	Built-in verification against named AI detectors including Turnitin, GPTZero, and Copyleaks Eight distinct writing modes tuned to context, including Academic, Formal, and Blog Meaning-preservation keeping original facts and citations intact Free tier with 250 words, no credit card required Iterative rewrite-and-adjust inside the same workspace
Pros	Addresses detection and rewriting in one interface instead of two separate tools Multiple rewrite modes give users a fallback if one style does not pass detection Vendor states plan changes and cancellation take two clicks, with no lock-in	Detector verification built into the same workflow, not a separate tool Free tier available with no credit card required Eight writing modes suit different contexts directly
Cons	Independent tests have shown it failing to bypass detectors like GPTZero in some cases Can introduce awkward phrasing or grammatical errors when pushed to evade detection Raises academic-integrity concerns given its bypass-detection use case	More words per month require a paid plan Detector-testing claims rely on the company's own stated methodology Newer product without an extensive independent track record yet
Company	GPTinf, founded 2023	ProofWrite AI, founded 2024

Prices come from each vendor's pricing page, last checked 20260731. Check the vendor before you buy.

FAQ

Questions people ask

Is GPTinf better than ProofWrite AI?

In our reviews GPTinf scores 3.5 and ProofWrite AI scores 3.9. The better pick depends on the job. GPTinf: A paraphrasing engine that rewrites AI-generated text to read as human-written. ProofWrite AI: Rewrites AI text and checks it against seven detectors, all in one pass.

Which is cheaper, GPTinf or ProofWrite AI?

ProofWrite AI has the lower starting price: from $19/mo for GPTinf and from $9.99/mo for ProofWrite AI.

Do GPTinf and ProofWrite AI have free plans?

Only ProofWrite AI has a free plan.

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