NEW Browse AI tools across categories — updated daily. See what's new →
Arena AI logo

Arena AI

by Arena Intelligence, Inc. • San Francisco, California, USA • Founded 2023

Community-Powered AI Model Ranking and LLM Leaderboard Platform

No reviews yet
|
9 4
Follow:
Pricing
Free to use for all users
Platforms
Last Updated
Apr 28, 2026

What is Arena AI?

Arena AI, formerly known as LMArena and Chatbot Arena, is a community-powered platform for evaluating and ranking frontier AI models through anonymous, real-world pairwise comparisons. Created by UC Berkeley researchers under LMSYS Org, the platform lets users submit prompts to two anonymous models, vote on the better response, and shape public leaderboards across text, code, vision, image generation, video, search, and document arenas.

With over 5 million community votes and participation from every major AI lab, Arena AI serves as the industry-standard benchmark for LLM performance based on genuine human preferences rather than synthetic benchmarks.

Arena AI Demo Video

Key Features 8

Anonymous Side-by-Side AI Model Comparison With Community-Driven Voting
Multi-Modal Leaderboards Covering Text, Code, Image, Video, and Documents
Battle Mode for Blind Head-to-Head Evaluation of Frontier AI Models
Arena Max Intelligent Router Routes Prompts to Best-Performing AI Model
Open-Source Human Preference Dataset — Largest Repository for AI Research
Real-Time Leaderboard Rankings With Price and Context Window Filters
Direct Chat and Side-by-Side Modes for Hands-On Model Testing
Originally UC Berkeley Research Project — Now Trusted by Millions Globally

Who Is Arena AI For

1 AI Researchers Benchmarking Frontier Models
2 Machine Learning Engineers Selecting Production LLMs
3 AI Product Managers Comparing Model Performance
4 Developers Evaluating Code Generation Models
5 Data Scientists Analyzing Human Preference Data
6 AI Enthusiasts Testing Latest Model Capabilities

Pros & Cons

Pros 4 benefits
  • Completely Free Model Access
  • Industry-Standard Benchmarking Authority
  • Supports All Major Labs
  • Open Research Datasets Available
Cons 3 limitations
  • Conversations Are Publicly Shared
  • No Persistent Chat History
  • Voting Can Be Manipulated

Frequently Asked Questions

5 questions

Trusted Reviews

Verified Platforms

What's New

daily
GPT-5.5 High and Claude Opus 4.7 Added

GPT-5.5-high added to Code, Text, Expert, Search, Document, and Vision leaderboards. Claude-opus-4-7 added to the Search leaderboard.

Apr 27
Video Arena Vote Consolidation and Document Arena Launch

Video Arena consolidated to single vote category with author-only voting. Document Arena launched with fully ranked scores from real user-uploaded PDFs. Video Edit Arena also launched as a new leaderboard.

Mar 10
View all updates

User Base

5M+ community voters
Active Users

Security & Privacy

GDPR Compliant CCPA Compliant
Data encryption in transit and at rest EU/UK Data Protection Representative appointed Identity leak detection in voting pipelines Vote quality filtering and anomaly detection

Collaboration & Teams

Multi-User Access Comments

Learning & Support

Resources

Documentation Video Tutorials Blog

Community

Discord

Support Channels

Email

Localization

1
UI Languages
100+
Content Languages

Recognition & Trust

Featured on PH VC Funded Open Source
Media: Featured in The Wall Street Journal, TechCrunch, Bloomberg, Forbes, Reuters, Ars Technica, Fast Company

Arena AI Pricing

Free to use for all users

POPULAR
Free
$0
  • Unlimited access to all AI models in Battle Mode
  • Side-by-side anonymous model comparisons
  • Full leaderboard access across all arenas
  • Direct Chat and Max intelligent router
Get Started Free

Company Info

Company Arena Intelligence, Inc.
Location San Francisco, California, USA
Founded 2023
Team Size 51-200

Arena AI Popularity

9
Views
4
Clicks
0
Reviews
-
Rating

Report

Found an issue with this listing?

Embed Widget

Add Arena AI card to your website

Arena AI
Arena AI
Community-Powered AI Model Ranking and L
Free ★★★★★ 4.5
Powered by AI Cloudbase View Details →
HTML
<script src="https://aicloudbase.com/embed/arena-ai"></script>

Similar Tools

Related Tools to Arena AI

View All →

Compare with Character AI

Side-by-side comparison

Best AI Chatting Tools Tools

Browse all in this category

AI Glossary

100+ AI terms explained

Compare Tools: