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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

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.

Fundz sees it the moment LMArena raises, hires an exec or expands, usually minutes after it happens, and tells you who to reach.

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Predictive Intelligence
Strategic

ML-powered predictions for LMArena's next move

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Funding Insights

What this usually means
Typical timeline to Series B
Series A companies typically raise their next round in 10-18 months

LMArena raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 285,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.