LMArena
PrivateLast Round
Series A
Jan 6, 2026
Est. Valuation
$1.7B
Total Funding Raised
$250M
Momentum Score
50 /100
Company Overview
LMArena, legally known as Arena Intelligence Inc., is a technology company that operates a crowdsourced platform for evaluating and benchmarking large language models (LLMs). Originally a research project at UC Berkeley called Chatbot Arena, the company was officially formed in 2025. The platform allows users to compare different AI models head-to-head in anonymous battles, and the votes are used to create a public leaderboard reflecting real-world user preferences. LMArena aims to provide a neutral, open, and transparent infrastructure for AI evaluation, serving researchers, developers, and the general public. The company is venture-backed, having raised a $100 million seed round in May 2025 to scale its platform and develop enterprise services.
Sector
AI, Data & Cloud Infrastructure
Verticals
ML Platforms, NLP & Conversational AI, Business Intelligence, Quality Management
Business Model
B2B
Customer Profile
Services & Consulting, Freemium
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
LMArena Comps
Public and private peers based on sector, stage, and business model.
LMArena Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Jan 6, 2026 | ||||
| Seed | May 21, 2025 |
LMArena Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Andreessen Horowitz | Series A, Seed |
| Laude Ventures | Series A, Seed |
| LDV Partners | Series A |
| UC Investments | Series A, Seed |
| Kleiner Perkins | Series A, Seed |
| House Capital | Series A, Seed |
| Felicis Ventures | Seed, Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- May 22, 2026
Grew 26% QoQ, from 50 to 63 employees.
- Apr 22, 2026
Grew 24% QoQ, from 46 to 57 employees.
LMArena Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Frequently Asked Questions
Common questions about LMArena's valuation, stock price, and market status.
