AI Detect vs Copyleaks AI Detector
AI Detect
github.com
Copyleaks AI Detector
copyleaks.comSide by side
| Figure | AI Detect | Copyleaks AI Detector |
|---|---|---|
| Price from | Free | $13.99/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 12 |
| Spec score · AI Content Detection Software | 9.0 (#6) | 9.1 (#4) |
| Spec score · AI Detection Software | 9.0 (#4) | 9.1 (#2) |
| Purpose | AI Detect is an open-source tool that scores writing sentence by sentence for likely AI-generated text. | The AI Detector identifies AI-written text, including text blended with human writing. |
| Self-hosting | The repository can be installed from source with pip and run as the ai-detect CLI or ai-detect-mcp server. | Security documentation describes on-premises Cloud Private Hubs for organizations retaining data in their own environment. |
| What it does | AI Detect classifies text sentence by sentence for likely AI authorship on the user’s own machine. | Copyleaks analyzes text for AI generation, plagiarism, paraphrasing and content authenticity. |
Plans
Copyleaks AI Detector
- PersonalPriced on request
- ProPriced on request
- Personal$16.99 a month
- Personal (monthly billing)$16.99 a month
- Pro$99.99 a month
- Pro (monthly billing)$99.99 a month
- Personal (annual billing)$167.88 a year
- Pro (annual billing)$899.88 a year
- EducationPriced on request
- EducationPriced on request
In their own words
Copyleaks AI Detector
Copyleaks AI Detector identifies AI-written text, including writing that mixes AI and human passages. It supports more than 30 languages and names GPT-5, GPT-4, ChatGPT, Claude, Gemini, DeepSeek, Llama, Bloom, Rytr, and Jasper among the sources it detects. AI Logic explains flagged results, displays AI phrase frequency, and can identify text appearing in published content elsewhere. The web detector scans up to 25,000 characters without login; the website platform requires at least 255 characters and accepts up to 2,000 pages. A Chrome and Edge extension accepts 350 to 25,000 characters, and a Google Docs add-on and education LMS integrations connect it to other workflows. Personal costs $13.99 a year with annual billing or $16.99 a month; Pro costs $74.99 a year with annual billing or $99.99 a month. A free plan and free trial are listed. Copyleaks says data is encrypted at rest with AES-256, reports SOC 2 and SOC 3 certifications, and supports GDPR compliance.