
Crowdsourced arena where AI models compete and humans crown the best design output
Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free 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 | arena.ai | lenso.ai |
| Pricing Model | Free | Freemium |
| Monthly Visits | 35.83M (35,827,928) | 1.59M (1,588,648) |
| MoM Traffic Delta |
| +5.83M (+19.4%) |
| -21.27K (-1.3%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇺🇸 United States (35.7%) |
|---|
| Direct Visits / mo | 24.34M | 945.53K |
|---|
| User Rating | 4.7 | 4.2 |
|---|
| Supported Platforms | Website | Website |
|---|

Battle-test AI coding models side by side
Send the same coding prompt to multiple leading models and compare their generated apps and logic side by side.
Watch models construct web apps and websites live, so you can see process and output, not just the final file.
Projects go beyond one-off snippets, testing how well a model structures components, routes, and styles together.
Track which coding models accumulate the most wins over time to identify consistently strong performers.

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.

Crowdsourced arena where AI models compete and humans crown the best design output

Agent Skills that give your coding agent real design taste
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
#3
Free AI hackathons and a global community for AI builders
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.

SpecialistVisual search engine tailored specifically for finding film stills and advertising shots rather than general web images.
Specializes in matching uploaded portraits against social media profiles, functioning similarly to Lenso's face search feature.

SpecialistPredicts geographic locations of uploaded photos using visual clues, offering location-based image analysis instead of standard duplicate search.

Scans public web pages for matching faces using reverse search, offering a comparable facial recognition workflow.
Focuses on reverse face search across public web sources, though with less comprehensive general image indexing than Lenso.
Community plugin, rule, and MCP server hub for Cursor
Crowdsourced arena where AI models compete and humans crown the best design output
Agent Skills that give your coding agent real design taste
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free AI hackathons and a global community for AI builders
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.
SpecialistVisual search engine tailored specifically for finding film stills and advertising shots rather than general web images.
Specializes in matching uploaded portraits against social media profiles, functioning similarly to Lenso's face search feature.
SpecialistPredicts geographic locations of uploaded photos using visual clues, offering location-based image analysis instead of standard duplicate search.
Scans public web pages for matching faces using reverse search, offering a comparable facial recognition workflow.
Focuses on reverse face search across public web sources, though with less comprehensive general image indexing than Lenso.
Community plugin, rule, and MCP server hub for Cursor