# Arena

> Public platform for chatting with AI models, comparing them side by side and voting to shape a community leaderboard.

Arena is a web platform for comparing AI models. Arena lets users send a prompt, see responses from different models side by side, and vote for the better one; the votes build a public leaderboard for text, code, image and video models. It is used in the browser by typing into a chat box.

**Best for:** Developers, researchers and anyone choosing between AI models who wants to test them on their own prompts and see community rankings.

- Official site: https://arena.ai/
- Listed in: [Large Language Models & Prompts](https://trendhub.net/ai-tools/category/large-language-models), [AI Chatbots](https://trendhub.net/ai-tools/category/ai-chatbots)
- Last checked: 2026-10-09 (facts taken from arena.ai)
- Source page: https://trendhub.net/ai-tools/arena-ai-model-comparison-llm-leaderboard

## Key facts

- Platforms: Web
- Made by: Arena Intelligence Inc.

## What is Arena?

Arena is a web platform for evaluating AI models through everyday use. Visitors type a prompt, receive answers from models, compare them next to each other and vote, and those votes feed a public leaderboard. The interface offers a Battle mode alongside a selector for picking a specific model, and suggests starting tasks such as building a landing page, a dashboard, a browser game or a full-stack app. Rankings are published per category, among them text, web development, vision, search, document tasks, text-to-image, image editing and several video categories, with an agent ranking as well. The project was started by UC Berkeley researchers and was earlier called Chatbot Arena and then LMArena; it has been run by Arena Intelligence Inc. since 2025. A notice on the page says inputs are processed by third-party AI.

## Key features

- **Side-by-Side Comparison**: Shows responses from different models to the same prompt so you can judge them directly against each other.
- **Battle Mode**: A mode in the prompt box, shown as Battle, for pitting models against each other and voting on the result.
- **Public Leaderboard**: Publishes rankings built from community votes, covering language, image and code models.
- **Category Rankings**: Separate boards exist for areas such as text, WebDev, vision, document, search, image editing and video generation.
- **Model Choice**: Lets you select any listed model for a chat rather than leaving the pick to the automatic setting.
- **App and Site Building**: Starter prompts cover web projects such as a storefront, a dashboard, a game or turning an uploaded design image into code.

## Use cases

- **Choosing a Model**: Try the same prompt on several models before deciding which one to adopt for a project.
- **Checking Rankings**: Look up which models currently lead in a category such as text-to-image or web development.
- **Prototyping a Web Page**: Ask a model to produce a landing page or small app and compare the outputs.
- **Contributing to Evaluation**: Vote on responses so that your judgement counts toward the public leaderboard.
- **Testing Image and Video Models**: Compare generation and editing models for images and video using your own prompts.

## Things to know

- **Third-party processing**: The home page notes that what you type is handled by outside AI providers and that answers can be wrong.
- **Formerly LMArena**: The service was previously known as Chatbot Arena and LMArena before taking the Arena name.
- **Rankings come from votes**: Leaderboard positions are derived from community evaluation rather than from a fixed test set alone.

## FAQs

### What is Arena?

Arena is a platform where people chat with AI models, compare their answers and vote, producing a public leaderboard of model performance.

### What is Arena used for?

Arena is used to compare AI models on real prompts and to consult rankings for text, code, image, video and other categories.

### Was Arena previously called LMArena?

Yes. Arena was formerly LMArena and before that Chatbot Arena, according to its About page.

### Who makes Arena?

Arena is operated by Arena Intelligence Inc., formed in 2025, and was created by researchers from UC Berkeley.

### What kinds of models does Arena rank?

Arena ranks language models as well as image, video, vision, search, document and web-development models, plus agents.

### Are Arena's responses reliable?

Arena warns that answers can be inaccurate and that what you type is handled by outside AI providers, so outputs should be checked.

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Source: https://trendhub.net/ai-tools/arena-ai-model-comparison-llm-leaderboard (trendhub)