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LMArena secures $150 million in Series A funding led by Felicis and UC Investments, valuing the company at $1.7 billion. This funding will help enhance its AI benchmarking platform.

PRIVATEAug 06, 2026•4 days ago

Amount Raised

$150 Million

Round Type

Series A

San FranciscoArtificial IntelligenceMachine Learning

Investors

Uc InvestmentsFelicis

Description

LMArena, the platform formerly known as Chatbot Arena, raised $150 million in a Series A led by Felicis and UC Investments. The funding round valued the company at $1.7 billion, nearly tripling its valuation from its previous seed round. The company reported over 5 million monthly users and $30 million in annual recurring revenue just four months after launching its paid product. This funding will support the continued development and expansion of its AI benchmarking services.

Company Information

Company

LMArena

Location

San Francisco, California, United States

About

LMArena is an open community platform for evaluating AI models, aiming to bring scientific rigor to AI reliability. It provides a neutral, reproducible infrastructure that allows researchers, developers, and users to understand AI model performance in real-world scenarios. With a focus on community-driven science, LMArena facilitates open evaluation and makes AI assessments transparent and reliable. The platform seeks to continuously innovate based on community feedback.

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Funding Insights

Based on industry data
Typical timeline to Series B
Series A companies typically raise their next round in 10-18 months
Monthly burn rate benchmark
47% of Series A startups spend $400k or more per month on operations
VC-backed spending patterns
VC-backed companies spend 89% more on sales and 100% more on marketing than bootstrapped peers
Tech investment trends
83% of B2B companies plan digital investments, with 79% prioritizing customer experience tech

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