# Copyleaks vs Lenso.ai

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.

| Metric | [Copyleaks](https://openaitools.app/tool/copyleaks) | [Lenso.ai](https://openaitools.app/tool/lenso-ai) |
| :--- | :--- | :--- |
| Website URL | https://copyleaks.com | https://lenso.ai |
| Categories | AI Content Detector, AI Detector, AI Writing Assistants, Large Language Models (LLMs) | AI Search Engine, AI Image Recognition, AI Face Recognition, AI API |
| Pricing Model | Paid, Contact for Pricing | Freemium |
| Monthly Visits | 2,402,494 | 1,588,648 |
| MoM Growth Rate | -14.1% | -1.3% |
| Primary Market | United States | United States |
| Direct Visits | 758,498 | 945,525 |
| Review Score | 4.4 | 4.2 |
| Saved Count | 8 | 3 |
| Supported Platforms | Website | Website |

## Copyleaks

Copyleaks has focused on content integrity since 2015, starting with plagiarism detection and expanding into AI detection and governance as generative models spread. Its core AI Detector analyzes text across more than 30 languages and can identify output from leading models such as ChatGPT, Gemini, Claude and DeepSeek, while its Plagiarism Checker searches a database covering 60 trillion websites, 16,000+ open-access journals and millions of internal documents to catch copying, paraphrasing and character manipulation. A unified multi-modal layer adds detection for video, audio and images, aiming to replace fragmented single-purpose tools.

For organizations, Copyleaks goes beyond individual checks with a scalable API that plugs content analysis into existing workflows, LMS platforms and publishing pipelines. Its compliance and governance use cases map to academic integrity, generative AI governance, code governance, IP and copyright protection, and detection of unauthorized LLM usage. Reporting dashboards, integrations and role-based controls help teams act on results at scale.

Founded as a plagiarism tool, Copyleaks now serves both individuals and large institutions. Free web tools give students and writers quick access to the AI Detector and Plagiarism Checker, while paid enterprise plans provide higher volumes, richer reporting and dedicated support. The company reports 100+ countries, 500+ enterprise and education customers and tens of millions of monthly scans.

**Pricing & Plans:** Paid, Contact for Pricing

- **AI content detection:** Identifies AI-generated text across 30+ languages and leading LLMs, with reported accuracy above 99% on internal English test sets.
- **Plagiarism checking:** Searches 60 trillion websites, 16,000+ open-access journals and internal repositories to catch paraphrasing and hidden copying.
- **Multi-modal detection:** Extends detection to AI-generated video, audio and images so teams can verify content beyond text alone.
- **API and integrations:** A scalable API and workflow integrations automate content analysis inside LMS platforms, publishing tools and enterprise systems.
- **Governance and compliance:** Supports academic integrity, GenAI governance, code governance and IP protection programs with reporting and controls.

**Strengths:** Combines AI detection and plagiarism checking in one platform; Broad language coverage and a very large comparison database; Scalable API and workflow integrations for enterprises; Free tools available for individuals alongside paid plans

**Limitations:** Pricing is quote-based and aimed mainly at organizations; AI-detection results can produce false positives on human writing; Full feature set requires an enterprise contract

[Profile (Markdown)](https://openaitools.app/tool/copyleaks.md)

## Lenso.ai

Lenso.ai applies content-based image retrieval (CBIR) and dedicated neural models to help you trace any picture back to its sources online. Instead of a single generic search, it offers purpose-built categories: People (facial recognition search), Places, Duplicates, and Similar/Related images. Each category uses models trained for that task, which produces more precise results than a one-size-fits-all image lookup.

The platform is popular with photographers, artists, and content creators who want to monitor where their work appears, verify copyright ownership, or find the original source of an image. Advanced Filters let you narrow results by page language, domain, date range, image size, and keywords in the page title, while Research Mode expands results for People and Duplicates up to roughly 10,000 matches. You can also save results into collections, set alerts when new matches appear, and share any search via link.

For businesses and developers, Lenso.ai sells a Developer subscription that unlocks the Image Search and Face Search API with up to 5,000 calls per month, plus usage tracking in your account panel. The service is free to start, with paid tiers unlocking deeper search, advanced filters, and higher API volume.

**Pricing & Plans:** Freemium. Core reverse image and face search can be tried for free; paid plans unlock Research Mode, Advanced Filters, more unlocked results, and API access (Developer plan up to 5,000 calls/month).

- **Facial recognition search:** Find where photos of a given face appear online by matching facial details with high precision.
- **Duplicate and copyright tracing:** Locate exact copies of an image and identify the original source to protect your copyright or credit correctly.
- **Multi-category image search:** Run separate searches for people, places, duplicates, similar, and related images, each backed by task-specific models.
- **Advanced filters and Research Mode:** Filter by language, domain, date, size, and title keywords, and expand results to roughly 10,000 matches per search.
- **Image Search and Face Search API:** Add Lenso's search engines to your own apps with a Developer subscription supporting up to 5,000 calls per month.

**Strengths:** Purpose-built search categories deliver more precise results than generic image search; Strong duplicate and copyright tracing with original-source detection; Developer API with visible monthly call allowance; Free tier lets you test face and image search before paying

**Limitations:** Full result sets and deeper search require a paid plan; Facial recognition search raises privacy considerations that vary by jurisdiction; API volume is capped by the Developer plan tier

[Profile (Markdown)](https://openaitools.app/tool/lenso-ai.md)

## Frequently Asked Questions

### How do Copyleaks and Lenso.ai compare in monthly traffic?

Copyleaks has 2,402,494 monthly visits, while Lenso.ai has 1,588,648. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Copyleaks has a month-over-month growth rate of -14.1%; Lenso.ai has -1.3%.

### How does pricing compare?

Copyleaks: Paid, Contact for Pricing. Paid, Contact for Pricing Lenso.ai: Freemium. Freemium. Core reverse image and face search can be tried for free; paid plans unlock Research Mode, Advanced Filters, more unlocked results, and API access (Developer plan up to 5,000 calls/month).

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | +19.7% | Freemium, Paid | Widely used for quick AI text detection, but less comprehensive for enterprise plagiarism and code auditing. | [.md](https://openaitools.app/tool/zerogpt.md) |
| 2 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | Stronger focus on educational integrity reporting, though it lacks Copyleaks' deep enterprise compliance workflows. | [.md](https://openaitools.app/tool/gptzero-me.md) |
| 3 | [Scribbr](https://openaitools.app/tool/scribbr) | 7,530,803 | +14.6% | Freemium | Includes expert human proofreading alongside plagiarism checks, but lacks native automated AI content detection. | [.md](https://openaitools.app/tool/scribbr.md) |
| 4 | [Undetectable AI](https://openaitools.app/tool/undetectable-ai) | 3,113,403 | +17.5% | Freemium | Combines AI detection with built-in text humanization, whereas Copyleaks focuses strictly on rigorous integrity verification. | [.md](https://openaitools.app/tool/undetectable-ai.md) |
| 5 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | Offers robust combined AI detection and plagiarism checking, but lacks Copyleaks' extensive enterprise API ecosystem. | [.md](https://openaitools.app/tool/originality.md) |
| 6 | [Isgen AI Detector](https://openaitools.app/tool/isgen-ai) | 901,917 | +5.8% | Freemium | Features detailed sentence-level analysis for multilingual text, but lacks Copyleaks' broad enterprise feature set. | [.md](https://openaitools.app/tool/isgen-ai.md) |
| 7 | [Winston AI](https://openaitools.app/tool/winston-ai) | 604,454 | +5.4% | Freemium, Free Trial | Provides reliable multi-modal content scanning, but offers fewer enterprise-grade integrations than Copyleaks. | [.md](https://openaitools.app/tool/winston-ai.md) |
| 8 | [PlagiarismCheck.org](https://openaitools.app/tool/plagiarismcheck-org) | 368,384 | +6.1% | Paid | Accuracy-first plagiarism and AI detection for schools, universities, and teams | [.md](https://openaitools.app/tool/plagiarismcheck-org.md) |
| 9 | [FaceSeek](https://openaitools.app/tool/faceseek-ai-face-search) | 350,166 | -11.9% | Freemium | Matches uploaded photographs against web and social indices specifically for facial recognition, similar to Lenso's face search. | [.md](https://openaitools.app/tool/faceseek-ai-face-search.md) |
| 10 | [Everypixel](https://openaitools.app/tool/everypixel) | 336,875 | +39.1% | Free | Aggregates and searches stock photography libraries across the web using neural networks, replacing Lenso's stock/duplicate focus. | [.md](https://openaitools.app/tool/everypixel.md) |

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Source: https://openaitools.app/compare/copyleaks-vs-lenso-ai

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)