Widely used for quick AI text detection, but less comprehensive for enterprise plagiarism and code auditing.
Widely used for quick AI text detection, but less comprehensive for enterprise plagiarism and code auditing.
Copyleaks records 2,402,494 monthly visits with -14.1% month-over-month growth and Paid, Contact for Pricing pricing. Lenso.ai records 1,588,648 monthly visits with -1.3% growth and Freemium pricing.

AI reverse image search with face, place, and duplicate detection
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | copyleaks.com | lenso.ai |
| Pricing Model | Paid, Contact for Pricing | Freemium |
| Monthly Visits | 2.4M (2,402,494) | 1.59M (1,588,648) |
| MoM Traffic Delta | -394.39K (-14.1%) | -21.27K (-1.3%) |
| Primary Market & Share | 🇺🇸 United States (53.2%) | 🇺🇸 United States (35.7%) |
| Direct Visits / mo | 758.5K | 945.53K |
| User Rating | 4.4 | 4.2 |
| 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.

AI reverse image search with face, place, and duplicate detection
Find where photos of a given face appear online by matching facial details with high precision.
Locate exact copies of an image and identify the original source to protect your copyright or credit correctly.
Run separate searches for people, places, duplicates, similar, and related images, each backed by task-specific models.
Filter by language, domain, date, size, and title keywords, and expand results to roughly 10,000 matches per search.
Widely used for quick AI text detection, but less comprehensive for enterprise plagiarism and code auditing.
Widely used for quick AI text detection, but less comprehensive for enterprise plagiarism and code auditing.
Stronger focus on educational integrity reporting, though it lacks Copyleaks' deep enterprise compliance workflows.
Stronger focus on educational integrity reporting, though it lacks Copyleaks' deep enterprise compliance workflows.

SpecialistIncludes expert human proofreading alongside plagiarism checks, but lacks native automated AI content detection.
SpecialistIncludes expert human proofreading alongside plagiarism checks, but lacks native automated AI content detection.
SpecialistCombines AI detection with built-in text humanization, whereas Copyleaks focuses strictly on rigorous integrity verification.
SpecialistCombines AI detection with built-in text humanization, whereas Copyleaks focuses strictly on rigorous integrity verification.

Offers robust combined AI detection and plagiarism checking, but lacks Copyleaks' extensive enterprise API ecosystem.
Offers robust combined AI detection and plagiarism checking, but lacks Copyleaks' extensive enterprise API ecosystem.

Features detailed sentence-level analysis for multilingual text, but lacks Copyleaks' broad enterprise feature set.
Features detailed sentence-level analysis for multilingual text, but lacks Copyleaks' broad enterprise feature set.

Provides reliable multi-modal content scanning, but offers fewer enterprise-grade integrations than Copyleaks.
Provides reliable multi-modal content scanning, but offers fewer enterprise-grade integrations than Copyleaks.

Accuracy-first plagiarism and AI detection for schools, universities, and teams
Accuracy-first plagiarism and AI detection for schools, universities, and teams
Matches uploaded photographs against web and social indices specifically for facial recognition, similar to Lenso's face search.
Matches uploaded photographs against web and social indices specifically for facial recognition, similar to Lenso's face search.
SpecialistAggregates and searches stock photography libraries across the web using neural networks, replacing Lenso's stock/duplicate focus.
SpecialistAggregates and searches stock photography libraries across the web using neural networks, replacing Lenso's stock/duplicate focus.

SpecialistVisual search engine tailored specifically for finding film stills and advertising shots rather than general web images.
SpecialistVisual search engine tailored specifically for finding film stills and advertising shots rather than general web images.

Check plagiarism, detect AI text and polish your writing in one place
Check plagiarism, detect AI text and polish your writing in one place