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TheChecker.AI
What TheChecker.AI is
TheChecker.AI analyzes text for AI-generated content from Claude, GPT models, Gemini, and more than 40 models, including ChatGPT and Llama. Results provide 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 free and requires no account, but there is no free plan or free trial. Paid detector plans start at $9.90 a month. The Monthly plan includes unlimited detections, document uploads, paragraph analysis, sentence highlighting, and 5,000 monthly Humanizer words; the Yearly plan adds priority support. One-time Humanizer credits range from 5.00 USD for 15,000 words to 35.00 USD for 150,000 words. The service is optimized for English. Text is processed immediately and not permanently stored unless saved to an account; submitted content remains the user's property and is not used to train the maker's models.
Who it suits
It suits educators, professionals, institutions, creators, businesses, and individuals checking writing for AI generation. English-language users needing detection plus rewriting tools are the clearest fit.
What it does well
- Covers Claude, GPT, Gemini, and 40+ models
- Provides paragraph and probability analysis
- Humanizer included with detector subscriptions
- Free demo requires no account
- Submitted content is not used to train models
What to know first
- No free plan or free trial
- Currently optimized for English
- Browser extension is listed as coming soon
- API documentation is coming soon
Limits
The detector plans include 5,000 Humanizer words per month. Humanizer use beyond that allowance requires separate one-time credit packs, while enterprise features use custom pricing.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Monthly | $9.90/month · Unlimited AI detections · 5,000 Humanizer words/month · paragraph-level analysis · PDF and document upload · sentence-level highlighting | $9.90 a month |
| Yearly | $99.00/year ($118.80/yr shown as crossed-out price) · Unlimited AI detections · 5,000 Humanizer words/month · paragraph-level analysis · PDF and document upload · sentence-level highlighting · priority support | $99 a year |
| Starter Humanizer Credits | Sold separately from the detector subscription · 15,000 humanizer words | $5, paid once |
| Standard Humanizer Credits | Sold separately from the detector subscription · 50,000 humanizer words | $15, paid once |
| Pro Humanizer Credits | Sold separately from the detector subscription · 150,000 humanizer words | $35, paid once |
| Enterprise | Custom pricing based on team size and requirements · Custom API integration · bulk user management for teams of 50+ · advanced analytics · dedicated account manager · custom SLA and data policies | On request |
| Humanizer Standard | $15 one-time · 50,000 Humanizer words · credits never expire · priority processing | $15, paid once |
| Humanizer Pro | $35 one-time · 150,000 Humanizer words · credits never expire · priority processing | $35, paid once |
The first 8 of 9 plans, as thechecker.ai lists them, read 4 Oct 2026. The maker's own page has the final word. Every plan
Getting started
- Open thechecker.ai
- Use the free detector demo without an account
- Create an account for saved scans and paid features
- Choose a Monthly or Yearly detector plan
- Connect through MCP with Claude or another MCP client
- Request early API access if needed
Verdict
TheChecker.AI combines AI-text detection with a Humanizer and multiple paid plans. Its free demo and broad model coverage are useful starting points, but English optimization and forthcoming extension and API features may limit some workflows.
Questions
Is there a free plan?
There is no free plan or free trial. A detector demo is free to use without an account, and demo checks are not saved.
How much does it cost?
The Monthly plan costs $9.90 a month. The Yearly plan costs $99 a year, and one-time Humanizer credits start at 5.00 USD.
Which platforms are supported?
TheChecker.AI is available on the web and through an API and MCP connection. A Chrome extension is described as coming soon.
What languages does it support?
The service is currently optimized for English, with multilingual support on its roadmap.
Is submitted text used for training?
The terms say submitted content remains the user's property and is not used to train the maker's models.
Facts from TheChecker.AI's own pages
- API availability
- The API documentation page says the REST API documentation is coming soon and invites users to request early access. · thechecker.ai, 4 Oct 2026
- Audience
- The maker describes the service as education-first and designed for educators, professionals, educational institutions, creators, businesses, and individuals. · thechecker.ai, 4 Oct 2026
- 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. · thechecker.ai, 4 Oct 2026
- Company
- The service is operated by Girema Holdings Limited, whose contact page lists an address in Limassol, Cyprus. · thechecker.ai, 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. · thechecker.ai, 4 Oct 2026
- Detection analysis
- It provides overall and paragraph-level probability scoring, and the pricing page lists sentence-level highlighting on paid plans. · thechecker.ai, 4 Oct 2026
- Free access
- The detector demo is free and requires no account; the maker does not specify a trial duration. · thechecker.ai, 4 Oct 2026
- Headquarters
- Limassol, Cyprus · thechecker.ai, 28 Sept 2026
- Humanizer
- The Humanizer rewrites AI text to sound naturally human; the detector plan includes 5,000 Humanizer words each month. · thechecker.ai, 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. · thechecker.ai, 4 Oct 2026
- Language limit
- The homepage FAQ says the service is currently optimized for English and that multilingual support is on the roadmap. · thechecker.ai, 4 Oct 2026
- Models
- The maker says detection covers Claude, GPT-5, Gemini, and 40+ models, including ChatGPT, Llama, and emerging models. · thechecker.ai, 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. · thechecker.ai, 4 Oct 2026
- Product
- TheChecker.AI analyzes text for AI-generated content from Claude, GPT models, Gemini, and more than 40 AI models. · thechecker.ai, 4 Oct 2026
- Security
- The privacy policy says the company uses encryption in transit and at rest, regular security assessments, and access controls. · thechecker.ai, 4 Oct 2026
- Support
- The features page advertises 24/7 support, while the yearly plan includes priority support. · thechecker.ai, 4 Oct 2026
Where TheChecker.AI stands on Freedom251
- AI Content Detection Software#42 of 45
- AI Content Detectors#25 of 25