GPTHuman AI: Free Humanizer, Detector & Writing Tools

GPTHuman AI is a provider of online writing tools that includes an AI humanizer, an AI content detector, and an AI writer. The platform also offers grammar improvement, readability checking, and SEO-oriented content refinement. It operates on a freemium model with paid tiers and stores usage counts rather than submitted text.

The AI Humanizer revises phrasing, sentence structure, transitions, and tone in AI-assisted drafts. Users should compare the result with the source because any rewrite can change meaning, facts, terms, or formatting. The tool allows adjustments to rhythm and tone while reviewing the meaning of the original text.

The AI Writer turns a brief into a structured first draft for users who need to generate content from a topic. Grammar Improver polishes spelling, punctuation, and sentence flow to ensure the text is correct. Readability Scorer helps users see how easy their writing is to follow and understand.

The Free plan includes 500 words per tool daily and access to all 5 AI tools without requiring a credit card. The Starter plan costs $9.99/month and raises the per-tool daily allowance to 2,500 words with standard support. The Pro plan costs $19.99/month and increases the allowance to 5,500 words with priority support.

All word allowances reset daily at 00:00 UTC, and daily allowances stay the same regardless of whether the user chooses weekly or monthly billing. Weekly subscriptions renew every 7 days, while monthly subscriptions renew every month. Users can manage or cancel their subscriptions in their billing portal at any time.

The Humanizer currently supports English, UK English, Spanish, French, German, and Arabic workflows. Users can choose the tone that fits their reader, ranging from conversational to academic. The platform supports multiple languages and several file upload formats including TXT, DOCX, PDF, MD, CSV, TSV, HTML, JSON, and XML.

The platform stores usage counts for limits and account history but does not store the submitted text or generated results. Text is sent to the configured AI provider only to process the specific request. This approach ensures that the user's words belong to them and are not retained indefinitely.

The AI Writer, Grammar Improver, Readability Scorer, and Free Plagiarism Detector are all included in the Free plan along with the AI Humanizer and AI Detector. Every plan includes all five writing tools, but higher tiers offer increased daily word allowances and priority support. The Ultra plan provides 15,500 words per tool daily with dedicated support.

Users can adjust phrasing, rhythm, and tone while reviewing the meaning of the original text. The tool allows users to keep what matters by comparing names, facts, citations, and keywords against the original. Users should review the rewrite side by side and use only the edits they want.

The Editorial Team byline represents product research, hands-on checks, editing, corrections, and localization. The operator is responsible for the application, support, privacy disclosures, product claims, and published guidance. The product function maintains the live Next.js application, tool workflows, and usage controls.

The platform provides standard support with responses delivered within 24 business hours for most inquiries. Priority support is provided for Starter, Pro, and Ultra subscribers who need faster assistance. The team responds to inquiries Monday through Friday and aims to deliver standard responses within 24 business hours.

You can reach GPTHuman AI: Free Humanizer, Detector & Writing Tools by e-mail at support@gpthuman.org.

The official website of GPTHuman AI: Free Humanizer, Detector & Writing Tools is gpthuman.org.

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