# Lenso.ai > AI reverse image search that finds duplicates, places, similar pictures and matching faces online. Lenso.ai is an AI reverse image search engine that looks for copies of a picture, similar or related images, places and matching faces across the web. Lenso.ai is used by uploading, pasting or dragging in an image, choosing a result category, and opening the pages where the matches were found. **Best for:** People who need to trace where an image appears online, such as photographers checking for copies of their work or creators looking for an original source. - Official site: https://lenso.ai - Listed in: [Image Recognition & OCR](https://trendhub.net/ai-tools/category/image-recognition-ocr) - Last checked: 2026-10-09 (facts taken from lenso.ai) - Source page: https://trendhub.net/ai-tools/lenso-ai-reverse-image-search-face ## Key facts - Platforms: Web, API - Pricing model: Freemium - Free plan: Yes - API: Yes ## What is Lenso.ai? Lenso.ai is a reverse image search engine that takes a picture as the query instead of keywords. It uses separate AI models for different result categories: people, places, duplicates, related images and similar images. The duplicates category is aimed at tracing original sources and spotting copies, including edited versions and other resolutions, which the site presents as useful for copyright protection. Face search matches facial details to find other photos of the same person and is available only in selected regions. Results can be narrowed with a website address or keywords, sorted, shared by link, saved into collections and monitored through email alerts when new matches appear. Paid plans named Starter, Professional and Developer unlock source links; Professional adds a deeper Research Mode and advanced filters, and Developer adds an API. ## Key features - **Category-Based Search**: Returns separate result sets for people, places, duplicates, related and similar images from one upload. - **Face Search**: Compares facial features to locate other photos of the same person, in regions where the feature is offered. - **Duplicate Detection**: Finds exact copies of an image as well as edited, cropped or resized versions and shows the page hosting each. - **Alerts**: Sends an email notification when new matches for a saved image appear in a chosen category. - **Research Mode and Filters**: Extends People and Duplicates searches to as many as 10,000 results and filters by language, date, domain, size or title keyword. - **Search API**: Lets developers run image and face searches from their own software on the Developer plan. ## How Lenso.ai works 1. **Add an image**: Supply the picture by uploading, pasting or dragging it into the search box. 2. **Choose a category**: Pick people, places, duplicates, related or similar to see that set of matches. 3. **Refine the results**: Sort the list or add a website address or keyword to narrow it. 4. **Open the sources**: Unlock a result to view the address of the page where the image was found. ## Use cases - **Checking for Copied Photos**: Upload your own picture to see which sites have republished it. - **Crediting the Right Source**: Trace an image back to where it first appeared before using it. - **Identifying a Location**: Search a landscape or building photo in the places category. - **Preparing a Takedown Request**: Use DMCA Assist to collect links and draft a message for the hosting company. - **Adding Image Search to an App**: Call the API to run reverse searches from another product. ## Things to know - **Face search is region-limited**: The site states that facial search works only in selected regions. - **Source links are unlocked per plan**: Each plan carries a set number of unlocks: 50 on Starter, 500 on Professional and 5,000 on Developer. - **Images are hosted elsewhere**: Lenso.ai displays photos that live on other websites and points to their source pages. - **API needs the Developer plan**: API access is tied to the Developer subscription and capped at 5,000 calls a month. ## FAQs ### What is Lenso.ai? Lenso.ai is an AI-powered reverse image search engine that finds people, places, duplicates and similar or related images from an uploaded picture. ### What is Lenso.ai used for? Lenso.ai is used to find where an image appears online, trace original sources, discover similar pictures and monitor new matches with alerts. ### Is Lenso.ai free? Lenso.ai offers free searching with limited credits. Unlocking the source links behind results, alerts and watermark removal belong to paid plans. ### How much does Lenso.ai cost? Lenso.ai sells Starter, Professional and Developer subscriptions, a one-time payment option and custom packages. See the official pricing page for current prices. ### Does Lenso.ai have an API? Yes. The Developer plan includes API access for image search and face search, with up to 5,000 calls per month and usage statistics in the user panel. ### Is face search available everywhere on Lenso.ai? No. Lenso.ai notes that face search is offered in some regions only. ### Does Lenso.ai work on mobile? Yes. The Lenso.ai site says a reverse image search can be made on a mobile device by uploading a picture or taking a photo. --- Source: https://trendhub.net/ai-tools/lenso-ai-reverse-image-search-face (trendhub)