Offers fast free AI detection and a sentence-level breakdown, but has less granular enterprise reporting than Isgen.
Offers fast free AI detection and a sentence-level breakdown, but has less granular enterprise reporting than Isgen.
Isgen AI Detector: Features detailed sentence-level analysis for multilingual text, but lacks Copyleaks' broad enterprise feature set. Copyleaks records 2,402,494 monthly visits with -14.1% month-over-month growth and Paid, Contact for Pricing pricing. Isgen AI Detector records 901,917 monthly visits with +5.8% growth and Freemium pricing.

Multilingual AI detector with sentence-level insight
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | copyleaks.com | isgen.ai |
| Pricing Model | Paid, Contact for Pricing | Freemium |
| Monthly Visits | 2.4M (2,402,494) | 901.92K (901,917) |
| MoM Traffic Delta | -394.39K (-14.1%) | +49.42K (+5.8%) |
| Primary Market & Share | 🇺🇸 United States (53.2%) | 🇰🇷 South Korea (15%) |
| Direct Visits / mo | 758.5K | 188.34K |
| User Rating | 4.4 | 3.8 |
| Supported Platforms | Website | Website |

Enterprise AI and plagiarism detection for content integrity
Identifies AI-generated text across 30+ languages and leading LLMs, with reported accuracy above 99% on internal English test sets.
Searches 60 trillion websites, 16,000+ open-access journals and internal repositories to catch paraphrasing and hidden copying.
Extends detection to AI-generated video, audio and images so teams can verify content beyond text alone.
A scalable API and workflow integrations automate content analysis inside LMS platforms, publishing tools and enterprise systems.

Multilingual AI detector with sentence-level insight
The detector is trained for broad language coverage rather than English-only use, which matters for international schools, multilingual newsrooms and cross-border content teams.
After the overall score, a second pass labels each sentence as Human, AI or Mixed and highlights the specific phrases pushing the score up.
Flagged passages are highlighted in the document, and a ranked impact list lets you scroll to the highest-signal sentences first.
Plagiarism checking, grammar proofreading, humanizing, an AI Editor and a presentation maker sit alongside the detector in one account.
Offers fast free AI detection and a sentence-level breakdown, but has less granular enterprise reporting than Isgen.
Offers fast free AI detection and a sentence-level breakdown, but has less granular enterprise reporting than Isgen.
Provides highly accurate AI content detection and batch file scanning, but lacks built-in plagiarism checking features.
Provides highly accurate AI content detection and batch file scanning, but lacks built-in plagiarism checking features.

SpecialistCombines academic plagiarism checking with professional human proofreaders, but lacks real-time standalone AI detection APIs.
SpecialistCombines academic plagiarism checking with professional human proofreaders, but lacks real-time standalone AI detection APIs.
Combines AI content detection with powerful text humanizing and rewriting tools, though accuracy varies across niche models.
Combines AI content detection with powerful text humanizing and rewriting tools, though accuracy varies across niche models.
SpecialistEmphasizes AI text humanizing and rewriting alongside detection, though its detection reports are less detailed than dedicated tools.
SpecialistEmphasizes AI text humanizing and rewriting alongside detection, though its detection reports are less detailed than dedicated tools.

Combines robust AI detection with built-in plagiarism checking and readability scores, but requires a paid subscription.
Combines robust AI detection with built-in plagiarism checking and readability scores, but requires a paid subscription.

Features high-accuracy text and image AI detection with detailed readability analysis, but offers fewer free monthly scans.
Features high-accuracy text and image AI detection with detailed readability analysis, but offers fewer free monthly scans.
Provides quick probability scores and highlights AI-generated passages, but lacks advanced document management features.
Provides quick probability scores and highlights AI-generated passages, but lacks advanced document management features.

Accuracy-first plagiarism and AI detection for schools, universities, and teams
Accuracy-first plagiarism and AI detection for schools, universities, and teams

SpecialistFocuses primarily on deep plagiarism checking while including AI detection, making it ideal for academic writing integrity.
SpecialistFocuses primarily on deep plagiarism checking while including AI detection, making it ideal for academic writing integrity.

Combines plagiarism checking with multi-model AI detection for academic institutions, but has a smaller user community.
Combines plagiarism checking with multi-model AI detection for academic institutions, but has a smaller user community.