SearchTools.ai's automated opinion — blended from public reviews, community signals, and development activity. Not an editorial rating or statement of fact.Click the score for the full breakdown.Quality
Estimated visits per month, across the web app and mobile apps.Visits32M/mo
Largest visitor share — 14% of traffic from India.Top region14%India

What it is

Overview

A model comparison arena where developers and AI researchers test multiple frontier models side-by-side on the same prompt. Users submit code challenges, writing tasks, or reasoning problems and watch different models compete in real-time. The community votes on outputs to build leaderboards. 32 million monthly visits, mostly from ML engineers and researchers who want to benchmark model performance before choosing one for a project.

At a glance

Usability & Quality overview

Inputs
Outputs
Platforms

Watch out for

  • Tool name mismatch: arena.ai is Chatbot Arena (LLM comparison), not an AI code/website builder
  • No real user experiences found for the described AI website builder/code generator
Real product, not a wrapperIndependent product

Arena.ai offers a unique live benchmarking platform where users can compare AI models in real-time through community voting, something you can't get from ChatGPT directly. The platform provides specialized coding evaluation workflows and access to multiple frontier models in head-to-head comparisons.

Strong evidence

Quality score

Updated monthlyMedium confidence
68/100

Code Arena Could not verify Code Arena (arena.ai) as an AI website/code builder—arena.ai is the LMSYS Chatbot Arena for comparing language models, not a code builder

Score breakdown
=68/100
User verdict ×50 25Adoption ×22 22Honesty ×16 13Value ×12 11Adjustments -232 to reach 100

This score is our editorial judgment, computed automatically from the sources, weights, and dates shown above. It reflects the data we could verify as of July 17, 2026, not a guarantee or statement of fact about Code Arena. Third-party ratings and quotes belong to their original platforms and authors. Thin data lowers our confidence label, and we say so instead of guessing. Work on Code Arena? Dispute any datapoint and we will review it, publish your response, and correct verified errors.

PricingUnknown

Individual plan details haven't been verified yet — they'll appear here on the next data refresh.

Community feedback

Aggregated reviews

Ratings and quoted comments below are aggregated from third-party sources and reflect those users' views, not SearchTools.ai's.

What reviewers talk about

themes inside the Sentiment pillar — not score ingredients

49Output Quality57 mentions
Scored from 57 mentions · medium confidence
POSITIVE trustpilot

this site has changed my life im autistic and permentaly sick with ibs and have little to no income thanks to arena.ai agent iv startet å buiness and now im getting alot done thanks so much from the bottom of my heart i hope its free in the future too

NEGATIVE reddit

Previously they placed GPT 5.5 below Meta's Muse Spark in terms of coding ability. This latest benchmark they've released with Grok Imagine surpassing Seedance video generation... if anyone is currently using both it's fair to say this is objectively dishonest.

POSITIVE reddit

Insane that it beats chatGPT and Gemini by such a landslide

NEGATIVE reddit

Public benchmark sucks. Check GPT-5.5 on Arc AGI 2, It's 84% while Kimi is 11%. https://arcprize.org/leaderboard

68Value & Pricing10 mentions
Scored from 10 mentions · low confidence
POSITIVE trustpilot

this site has changed my life im autistic and permentaly sick with ibs and have little to no income thanks to arena.ai agent iv startet å buiness and now im getting alot done thanks so much from the bottom of my heart i hope its free in the future too

NEGATIVE reddit

Anyone else actually run this on real work or just vibes so far? I'm working with it for work since last week (some good test refactoring and it's decent). I never really used opus much (only sonnet ) so hard to compare. I did the same work with sonnet. It's faster but ran out of quota after 3 "classes" (while glm is muuuch more generous)

POSITIVE trustpilot

Fantastyczna strona do sprawdzania najnowszych modeli za darmo. Testowania. Oceniania. Ale także można śmiało po prostu korzystać ze strony i najpotężniejszych modeli AI za darmo. Należy jednak pamiętać że wszystkie wiadomości na stronie są publicznie dostępne, a wielkie firmy wykorzystują je do trenowania modeli.

POSITIVE reddit

The pricing difference here is what’s absolutely mind-blowing. Kimi K3 is $3/$15 compared to Claude Fable’s eye-watering $10/$50. That’s a 3x+ cost reduction for better performance on agentic webdev. Even GLM 5.2 at $1.40/$4.40 sitting at Rank 4 is an insane value proposition. It really shows that the real existential danger the Western frontier labs were warning us about was actually just market competition. When you gatekeep your models for months under the guise of national security and safet

19Reliabilitythin data · 5 mentions
Scored from 5 mentions · low confidence
NEGATIVE trustpilot

The worst AI page ever. The number of bugs, errors, and annoying things that have been happening in recent months is so ridiculous that even with all the time in the universe, I wouldn't have time to count them all. The limits have been lowered, models have been removed without any notice on the page, you have to constantly do captchas over and over when you make more than 3 consecutive requests The only reason I still use this site is because of its models.

NEGATIVE social_sentiment

I love LMArena. but the only problem I face is that i was building my project and i wanted a js file, as soon as i said give that, it got stuck on "Generating..." for like 12 hours. Everything else is excellent though. Can you pleaseeeee fix it?

NEGATIVE reddit

Opencode + glm 5.1 > opus 4.6 for my cases, but keep context below 100-150k and do not expect fast responses if using z.ai as provider

NEGATIVE social_sentiment

Hi, there's a small problem. When I select opus 4.6, think always displays something went wrong, and it happens even when it's still generating. It's due to the time it takes. It generates for too long and interrupts the process.

58Ease of Use12 mentions
Scored from 12 mentions · low confidence
POSITIVE reddit

Arena.ai which everyone knew as LMArena or Chatbot Arena just got a fresh new name. What started as a small UC Berkeley PhD research project comparing language models has grown into one of the biggest community platforms where people vote on real tasks like coding reasoning writing and creative work. Main changes worth noting New simple name Arena Updated look with pillar style logo scholastic colors and clean academic fonts Website now lives at arena.ai Video evaluations already working on the

NEGATIVE trustpilot

The worst AI page ever. The number of bugs, errors, and annoying things that have been happening in recent months is so ridiculous that even with all the time in the universe, I wouldn't have time to count them all. The limits have been lowered, models have been removed without any notice on the page, you have to constantly do captchas over and over when you make more than 3 consecutive requests The only reason I still use this site is because of its models.

NEGATIVE reddit

how to control GLM 5.2 max medium or low in opencode ?I only have GLM 5.2 !I have an API key from Z ai also in the opencode go and both I cannot control thier effort level

POSITIVE reddit

Some benchmaxxing going on there with GLM since (as a heavy daily user of GLM 5.1 ) it's definitely a step below both Opus (as per the chart) and also GPT 5.4-High (via Codex CLI) in my experience. But, it's better than both Sonnet and GPT 5.4-Medium . That's an achievement.And its pleasant to chat with (not too concise, not too verbose) whilst doing OK with UI/front-end; something that GPT gets wrong imo. OpenWeights turns out not to be a red herring after all...

Watch & learn

Video content

YouTube
Build fullstack applications in Code Arena | Arena.ai walkthrough YOUTUBE1.8K views

Build fullstack applications in Code Arena | Arena.ai walkthrough

ArenaAIOfficial19 days ago

Capabilities

Key features

Website Builder

Builds complete, working websites from a prompt without writing code

Code Generator

Turns natural-language descriptions into working code in your chosen programming language

Game Development

Generates game assets, levels, and logic to speed up game creation

App Builder

Builds working applications from plain-language descriptions without manual coding

The honest take

What users love & flag

Distinct themes surfaced across user reviews — each grounded in real review text, ranked by how often it comes up.

What users love7
Access to multiple frontier AI models in one platform
Real-time model comparison and benchmarking capabilities
Community-driven evaluation through voting system
Free access to expensive AI models
Live coding evaluation workflows
Academic credibility from UC Berkeley origins
Regular model updates and additions
What users flag7
Frequent bugs and system errors
Models removed without notice
Excessive captcha requirements after few requests
Rate limits lowered over time
Slow response times and generation timeouts
Benchmark accuracy questioned by community
Interface stability issues

Questions

Frequently asked

What is Code Arena?

Code Arena is an AI development platform that helps users build complete web applications, games, and online stores without extensive coding knowledge. You can upload design images to generate functional code or create projects from scratch using interactive templates. The platform handles both frontend and backend development for full-stack applications.

Can I upload my existing designs to Code Arena?

Yes, Code Arena allows you to upload design images that the AI will convert into functional HTML, CSS, and JavaScript code. This eliminates the manual process of translating visual designs into working web code. The platform also supports file uploads for importing existing assets or data to enhance your projects.

What types of projects can I build with Code Arena?

Code Arena supports building web applications, browser-based games, e-commerce storefronts, interactive dashboards, and marketing landing pages. The platform can transform raw data into charts for dashboards and provides templated approaches for creating full-stack applications. All projects can be created without requiring extensive programming knowledge.

Does Code Arena work for e-commerce development?

Yes, Code Arena includes a storefront creation feature that enables users to launch complete e-commerce sites. This is part of the platform's broader capability to build full-stack web applications. However, specific details about payment integration, inventory management, or other e-commerce features are not specified in the available information.

Can I create games with Code Arena?

Yes, Code Arena can create playable browser games without requiring coding knowledge. The platform includes game development as one of its core capabilities alongside web applications and e-commerce sites. However, the types of games supported or the complexity level achievable is not detailed in the available information.

What is Battle Mode in Code Arena?

Code Arena includes a 'Battle Mode' feature, but specific details about this functionality are not provided in the available information. The feature is mentioned as part of the platform's capabilities, but its purpose and how it works remain unspecified.

Where can I access Code Arena?

Code Arena is available as a web-based tool that you can access through your browser at arena.ai. The platform operates entirely online without requiring software downloads or installations.

Compare Code Arena

Compare with another tool

More Like This

1
2
...
6
Code ArenaUnknown
Use Tool