TheChecker.AI
TheChecker.AI analyzes writing for signs of AI generation from Claude, GPT models, Gemini, and more than 40 models, including ChatGPT and Llama.
What TheChecker.AI is
TheChecker.AI analyzes writing for signs of AI generation from Claude, GPT models, Gemini, and more than 40 models, including ChatGPT and Llama. Results include overall and paragraph-level probability scores, with sentence-level highlighting on paid plans. Its Humanizer rewrites AI text to sound naturally human, and detector subscriptions include 5,000 Humanizer words each month. A detector demo is available without an account, but there is no free plan or free trial. Monthly detector pricing is $9.90 a month, while yearly billing is $99 a year. One-time Humanizer credits cost 5.00 USD for 15,000 words, 15.00 USD for 50,000, or 35.00 USD for 150,000. The service is optimized for English. Text is processed immediately and not permanently stored unless results are saved to an account; submitted content remains the user’s property and is not used to train the maker’s models. Web access and an MCP connection are available.
Good
- Covers Claude, GPT, Gemini, and 40+ models
- Overall and paragraph probability scoring
- Humanizer included with detector plans
- Free detector demo without an account
- MCP connection for Claude clients
Watch out
- No free plan or free trial
- Currently optimized for English
- Chrome extension and REST API documentation are coming soon
Who it suits
It is aimed at educators, professionals, institutions, creators, businesses, and individuals checking or revising AI-generated text. English-focused users who need paragraph analysis or Humanizer credits may find it suitable.
Verdict
TheChecker.AI combines AI-text detection with rewriting tools and several paid credit options. Its English focus and unavailable extension and API documentation are important considerations.
Plans and prices
From TheChecker.AI's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Monthly | $9.90 a month | Unlimited AI detections · 5,000 Humanizer words/month · paragraph-level analysis · PDF and document upload · sentence-level highlighting · $9.90/month |
| Yearly | $99 a year | Unlimited AI detections · 5,000 Humanizer words/month · paragraph-level analysis · PDF and document upload · sentence-level highlighting · priority support · $99.00/year ($118.80/yr shown as crossed-out price) |
| Starter Humanizer Credits | $5, paid once | 15,000 humanizer words · Sold separately from the detector subscription |
| Standard Humanizer Credits | $15, paid once | 50,000 humanizer words · Sold separately from the detector subscription |
| Pro Humanizer Credits | $35, paid once | 150,000 humanizer words · Sold separately from the detector subscription |
| Enterprise | Priced on request | Custom API integration · bulk user management for teams of 50+ · advanced analytics · dedicated account manager · custom SLA and data policies · Custom pricing based on team size and requirements |
| Humanizer Starter | $5, paid once | 15,000 Humanizer words · credits never expire · $5 one-time |
| Humanizer Standard | $15, paid once | 50,000 Humanizer words · credits never expire · priority processing · $15 one-time |
| Humanizer Pro | $35, paid once | 150,000 Humanizer words · credits never expire · priority processing · $35 one-time |
The facts
Each one read from TheChecker.AI's own pages, with the date it was checked.
What it does
- API availability
- The API documentation page says the REST API documentation is coming soon and invites users to request early access.checked 4 Oct 2026
- Audience
- The maker describes the service as education-first and designed for educators, professionals, educational institutions, creators, businesses, and individuals.checked 4 Oct 2026
- Data use
- The terms say submitted content remains the user's property and is not used to train the maker's models.checked 4 Oct 2026
- Detection analysis
- It provides overall and paragraph-level probability scoring, and the pricing page lists sentence-level highlighting on paid plans.checked 4 Oct 2026
- Humanizer
- The Humanizer rewrites AI text to sound naturally human; the detector plan includes 5,000 Humanizer words each month.checked 4 Oct 2026
- Integrations
- The homepage describes an MCP connection for Claude or other MCP clients, with detection and humanization tools using the same account.checked 4 Oct 2026
- Language limit
- The homepage FAQ says the service is currently optimized for English and that multilingual support is on the roadmap.checked 4 Oct 2026
- Models
- The maker says detection covers Claude, GPT-5, Gemini, and 40+ models, including ChatGPT, Llama, and emerging models.checked 4 Oct 2026
- Privacy
- The privacy policy says text is processed immediately and not stored permanently unless results are saved in an account; the homepage says demo checks are not saved and account scans are saved.checked 4 Oct 2026
- Product
- TheChecker.AI analyzes text for AI-generated content from Claude, GPT models, Gemini, and more than 40 AI models.checked 4 Oct 2026
- Security
- The privacy policy says the company uses encryption in transit and at rest, regular security assessments, and access controls.checked 4 Oct 2026
- Support
- The features page advertises 24/7 support, while the yearly plan includes priority support.checked 4 Oct 2026
Where it runs
- Browser extension
- The Chrome extension page says the extension is coming soon and describes planned one-click checks, page scanning, and support for Google Docs and Gmail.checked 4 Oct 2026
The company
- Company
- The service is operated by Girema Holdings Limited, whose contact page lists an address in Limassol, Cyprus.checked 4 Oct 2026
- Headquarters
- Limassol, Cypruschecked 28 Sep 2026
Money
- Free access
- The detector demo is free and requires no account; the maker does not specify a trial duration.checked 4 Oct 2026
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