Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. Undetectable AI records 3,113,403 monthly visits with +17.5% growth and Freemium pricing.
Battle-test AI coding models side by side
Detect, humanize and verify AI content in one place
| Dimension / Metric | | |
|---|---|---|
| Official Domain | arena.ai | undetectable.ai |
| Pricing Model | Free | Freemium |
| Monthly Visits | 35.83M (35,827,928) | 3.11M (3,113,403) |
| MoM Traffic Delta | +5.83M (+19.4%) | +464.72K (+17.5%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇺🇸 United States (31.4%) |
| Direct Visits / mo | 24.34M | 2.34M |
| User Rating | 4.7 | 3.8 |
| 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.
Detect, humanize and verify AI content in one place
Scans up to 5,000 words at a time and highlights the specific sentences most likely to be flagged as machine-written, so you can see your text the way a detector sees it.
Rewrites AI-flagged passages with different sentence rhythms, vocabulary and tone, keeping your meaning while making the prose read like human writing.
Detectors for AI images, voice recordings, video and deepfakes, plus specialty document tools for checking whether a PDF or screenshot has been manipulated.
Detect and humanize directly inside Gmail, Google Docs or any web page without switching tabs.
SpecialistAI content detection and a full writing toolkit in one place
SpecialistAI content detection and a full writing toolkit in one place
SpecialistAI detection and writing verification built for schools and editors
SpecialistAI detection and writing verification built for schools and editors
Features a streamlined browser-based humanizer for quick rewrites, but lacks deeper multi-model detection scoring dashboards.
Features a streamlined browser-based humanizer for quick rewrites, but lacks deeper multi-model detection scoring dashboards.
Offers multiple AI humanizing engines and side-by-side editing, but can occasionally produce repetitive phrasing in longer essays.
Offers multiple AI humanizing engines and side-by-side editing, but can occasionally produce repetitive phrasing in longer essays.
Provides dedicated humanization and detection checking in a single workflow, but has a smaller user community and fewer presets.
Provides dedicated humanization and detection checking in a single workflow, but has a smaller user community and fewer presets.
SpecialistFunctions as a broad academic writing workspace with humanizing features, but is less fine-tuned specifically for bypassing detectors.
SpecialistFunctions as a broad academic writing workspace with humanizing features, but is less fine-tuned specifically for bypassing detectors.
Provides an intuitive humanizer and writing assistant suite, but has fewer advanced customization parameters for strict detector bypass.
Provides an intuitive humanizer and writing assistant suite, but has fewer advanced customization parameters for strict detector bypass.
Crowdsourced arena where AI models compete and humans crown the best design output
Crowdsourced arena where AI models compete and humans crown the best design output
Delivers simple browser-based AI text humanization, but lacks the advanced batch processing and API access of Undetectable.
Delivers simple browser-based AI text humanization, but lacks the advanced batch processing and API access of Undetectable.
Agent Skills that give your coding agent real design taste
Agent Skills that give your coding agent real design taste
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free AI hackathons and a global community for AI builders
Free AI hackathons and a global community for AI builders
