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Independent benchmarking of AI models and API providers on intelligence, speed, latency and price, with image, video and coding arenas.
Arena (LMArena) AI features and pricing (October 2026)
Public AI arena, formerly LMArena, that ranks models for text, code, vision, search, images and video from anonymous side-by-side votes.
Contact for pricingFree plan
Pricing: Contact for pricing
Voting and leaderboards are free to use; the published human preference datasets are open. No prices for commercial services were shown in September 2026.
What is Arena (LMArena)?
Arena is a public platform where people compare two anonymous AI answers and vote for the better one. The votes feed leaderboards that many teams consult when choosing a model.
Arena, run by Arena Intelligence, Inc. and formerly known as LMArena, offers leaderboards for overall, agent, text, vision, document, search, WebDev, image-to-WebDev, text-to-image, image editing, text-to-video, image-to-video and video editing tasks. The leaderboard page reports more than 355 million sessions. The company was created by researchers from UC Berkeley, raised $250 million from investors including Felicis and Andreessen Horowitz, and publishes large human preference datasets.
Arena (LMArena) AI features and use cases
- Shows which models people preferLeaderboards are built from votes on anonymous answer pairs, so they reflect real user preferences rather than fixed test questions. Teams get a quick first shortlist before running their own tests.
- Compares models per task typeSeparate boards for text, code, search, images and video show that rankings differ by task. A marketing team looking for image generation and an IT team looking for coding help can each start from the relevant board.
- Weighs cost against qualityA Pareto view shows which models give the best performance for their price per task. This helps budget owners avoid paying for a top model where a cheaper one scores almost the same.
What sets Arena (LMArena) apart
- Rankings based on votes from real users on anonymous answer pairs, not on a fixed question set.
- Covers text, agents, search, code, images and video on one site.
Where Arena (LMArena) is strongest
United States Available internationally
Arena Intelligence, Inc. states in its privacy policy that it is headquartered in the United States; it was created by researchers from UC Berkeley.
Questions to ask before you buy Arena (LMArena)
Anything typed into Arena may be published and shared with AI providers, according to its privacy policy, so staff must not enter company, customer or personal data. Crowd preferences favor style and tone and do not replace tests on your own tasks. Arena Intelligence is headquartered in the United States, and according to the privacy policy personal data may be transferred to the US or other countries.
Arena (LMArena) reviews
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Questions about Arena (LMArena)
Can employees test models on Arena with company data?
No. The privacy policy says user content may be visible to the public and shared with AI technology providers. Use only non-sensitive prompts.
How are the rankings created?
Users compare two anonymous model answers and vote for the better one. The votes are aggregated into leaderboards per category.
Is Arena free?
Yes. Voting and viewing the leaderboards is free, and Arena publishes its human preference datasets openly.
Arena (LMArena) update historyno updates yet
No changes recorded for Arena (LMArena) yet.
Changes the vendor made and confirmed user reports, each checked against the vendor's own pages. We review every tool monthly.
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