LMArena
LMArena

LMArena

A platform for evaluating AI models through anonymous, crowd-sourced pairwise human comparisons and leaderboards.

2025Active71San Francisco, United States

About

LMArena provides a transparent, community-driven evaluation platform where users compare anonymous AI model responses to determine performance. It serves as a critical benchmark for AI developers and enterprises to assess real-world model utility and reliability. Teams look it up for AI, SaaS, Data.

Frequently asked

What does LMArena do?

LMArena is an AI company that offers Platform. Teams look it up for SaaS, Data. It is based in San Francisco, United States and was founded in 2025. Public records show about 71 people and $250M raised. Compare it on funding, headcount, reviews and nearby alternatives rather than the marketing line alone.

How much funding has LMArena raised?

LMArena has raised a total of $250M in funding. The most recent round on record is Series A.

Where is LMArena headquartered?

LMArena is headquartered in San Francisco, United States.

When was LMArena founded?

LMArena was founded in 2025.

What industry does LMArena operate in?

LMArena operates in AI, SaaS, Data.

How many employees does LMArena have?

LMArena has approximately 71 people on record.

Scores
Measured, not editorial
Ahrefs DR
81/100

Strength of the site’s backlink profile, on Ahrefs’ 0-100 Domain Rating scale. Licensed third-party data, not our opinion.

Agent Readiness
40/100

How well an AI agent can read and use this site: structured data, clean markup, and whether key facts are reachable without running JavaScript. We scan the live site.

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