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Polygraf AI Detector vs TheChecker.AI

Polygraf AI Detector

polygraf.ai

TheChecker.AI

thechecker.ai

Side by side

FigurePolygraf AI DetectorTheChecker.AI
Price from$9.95/mo$8.25/mo
Free planYes—
Free trialYes—
Open source——
WebYesYes
APIYesYes
Plans published39
Spec score · AI Content Detection Software8.7 (#12)7.4 (#36)
HeadquartersAustin, Texas, USALimassol, Cyprus
IntegrationsThe company lists native integrations including ChatGPT/OpenAI, Microsoft Copilot, Google Gemini, Anthropic Claude, and AWS Bedrock.The homepage describes an MCP connection for Claude or other MCP clients, with detection and humanization tools using the same account.
PrivacyThe product page says analyses are private and that data is not stored or reused.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.
SecurityThe company describes its AI as on-premises, zero-trust, and locally run for real-time protection in regulated environments.The privacy policy says the company uses encryption in transit and at rest, regular security assessments, and access controls.
SupportThe retail pricing page lists basic chat and email support on its $10-per-month Basic plan.The features page advertises 24/7 support, while the yearly plan includes priority support.

Plans

Polygraf AI Detector

  • FreeFree
  • Standard$9.95 a month
  • Premium$49.95 a month

Polygraf AI Detector pricing →

TheChecker.AI

  • Monthly$9.90 a month
  • Yearly$99 a year
  • Starter Humanizer Credits$5, paid once
  • Standard Humanizer Credits$15, paid once
  • Pro Humanizer Credits$35, paid once
  • EnterprisePriced on request
  • Humanizer Starter$5, paid once
  • Humanizer Standard$15, paid once
  • Humanizer Pro$35, paid once

TheChecker.AI pricing →

In their own words

Polygraf AI Detector

Polygraf AI Detector identifies whether content was created or manipulated by AI. It reports AI-versus-human probability scores, confidence information, and explainable evidence, and can identify which models may have generated content. The consumer page lists detection for ChatGPT, Gemini, Claude, and other models. One-click verification produces results described as transparent and auditable. The product is available on the web and as a Chrome extension, with file uploads and API access. Polygraf lists integrations with ChatGPT/OpenAI, Microsoft Copilot, Google Gemini, Anthropic Claude, and AWS Bedrock; some cloud-dependent integrations require internet access and do not work in air-gapped deployments. Related Data Provenance tools include AI highlighting, copyright and plagiarism detection, humanized text detection, writing analysis, and synthetic voice detection; the company says these tools are included in all plans. Polygraf says analyses are private and data is not stored or reused. Listed plans are Free at free, Standard at $9.95 a month, and Premium at $49.95 a month. The free plan includes 2.5K monthly tokens, approximately 2K words; Standard includes 150K monthly tokens, approximately 135K words, and Premium includes 1M monthly tokens, approximately 900K words.

Visit polygraf.ai

TheChecker.AI

TheChecker.AI has no write-up on Specifiction yet; its figures are above.

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