LMArena review (2026): is it worth it?
Compare AI models side by side and vote on the answers
LMArena report card
Fair · out of 4.0 · graded Nov 13, 2026
Best for comparing AI models side by side and voting
LMArena, now branded Arena, lets you send one prompt to AI models and compare the answers, with your votes feeding public leaderboards. But the vendor's pages gave no price, so cost and limits are unverified, and models are anonymous until you vote.
Who LMArena is for
- Fits if you are choosing a model and want to see answers from several at once
- Works for people who follow community-voted AI rankings
Who LMArena is not for
- Skip it if you want a daily assistant with memory and files, as it is built for comparison
- Not for you if you mind your votes being public, as they feed the leaderboards
- Watch out: the cost and any limits could not be confirmed from the pages read
- Watch out: in Battle mode models stay anonymous until you vote, and an account may be needed for some features
Why LMArena gets a 2.2
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- CValue for moneyThe listing calls it free, but no price page exists and the homepage sits behind a bot check, so the cost is not confirmed. That leaves it in the middle.
- CFree plan and trialListed as free, but the terms say an account may be required for some features, and no usage limits are published.
- CFeaturesBattle, Side by Side and Direct modes, leaderboards, image and video generation. A focused tool for comparing models, not a daily assistant.
- BEase of useA website where you type a prompt and pick the better answer. No store rating is on record.
- CPlatforms and integrationsWeb only. The pages name no apps and no integrations.
What these grades rest on. Graded from this listing, whose facts were read from LMArena's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. Its pricing page showed no plan prices in the text we could read, so the grades lean on the listing. How we review and grade.
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<a href="https://toolgpa.com/tools/lmarena#review"><img src="https://toolgpa.com/badge/lmarena.svg" alt="LMArena: 2.2 GPA on ToolGPA" width="196" height="56"></a>Where LMArena stands among AI assistants
LMArena's GPA of 2.2 is higher than 15 of the 87 other AI assistants we grade, and level with 15.
It stands best on ease of use (B, above 40 of 87) and worst on features (C, above 1).
LMArena has no paid plan.
On features, ease of use and platforms it scores 2.3 out of 4. Nothing scores higher for less, though at least one tool matches that score at a lower price.
Each grade against the category
Every bar is all 88 AI assistants we grade, cut by the letter each got. LMArena’s own letter is outlined.
- CValue for moneyAbove 10 of 87, level with 44
- CFree plan and trialAbove 12 of 87, level with 43
- CFeaturesAbove 1 of 87, level with 49
- BEase of useAbove 40 of 87, level with 32
- CPlatforms and integrationsAbove 2 of 87, level with 39
Price against what you get
Each dot is one of 65 AI assistants. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep LMArena, or make your own?
Keep it
LMArena is free, so making your own would save you nothing.
And it is not the kind of software a weekend replaces. That makes this kind of software worth paying for, not this one in particular: 57 of the 87 other AI assistants grade higher.
What you could not
- An AI model, which you can rent by the request but not make.
- An image model, which you can rent by the picture but not make.
- A video model, which you can rent by the second but not make.
- A search engine with an AI model behind it.
What this rests on. LMArena’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is LMArena?
LMArena, now branded Arena at arena.ai, is a platform where you send a prompt to AI models and compare the answers. Your votes feed public leaderboards that rank models for text, web development, images, video, search and other tasks. It started as the UC Berkeley research project Chatbot Arena and is now run by Arena Intelligence Inc.
Worth knowing
- The pricing could not be confirmed: the homepage sits behind a bot check and no pricing page exists, so cost and any usage limits are not verified here.
- In Battle mode the models are anonymous until you vote, and your votes become part of the public leaderboards.
- The terms say an account may be required to access certain features of the service.
- The vendor's pages describe a web product and name no desktop or mobile apps.
Key features
- Battle mode
- Two anonymous models answer the same prompt and you vote for the better reply. Pre-release models can show up under codenames, according to the FAQ.
- Side by Side and Direct modes
- Side by Side lets you pick two models to compare, and Direct Mode lets you chat with one model of your choice. The FAQ describes how votes are used in each.
- Public leaderboards
- Rankings come from votes using the Bradley-Terry rating system and cover categories such as text, WebDev, vision, document, search, image and video.
- Image and video generation
- The site lists use cases for generating images and videos, with matching text-to-image, image edit and video leaderboards, and a help article on Video Arena.
- Agent and web app building
- The navigation lists an Agent leaderboard and use cases for building apps and websites and completing multi-step tasks.
LMArena pricing
We could not confirm LMArena’s current pricing from its own site, so we are not listing plans here. See arena.ai for current prices.
LMArena alternatives
- LMArena vs Poe
Free plan · from $4.17/mo
- LMArena vs OpenRouter Chat
Free plan · from $0
- LMArena vs ChatLLM
From $10/mo
- LMArena vs T3 Chat
Free plan
- LMArena vs TypingMind
Free plan · from $39 one-time
Common questions
Does LMArena have an Android app?
No Android app was listed when its pages were read on Nov 13, 2026. LMArena is listed for Web.
Does LMArena have an iPhone app?
No iPhone app was listed when its pages were read on Nov 13, 2026. LMArena is listed for Web.
Is LMArena open source?
LMArena is not described as open source on its own site, as read on Nov 13, 2026.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 13, 2026.