LMArena
Leadership
Anastasios Angelopoulos - Co-founder & CEO
Wei-Lin Chiang - Co-founder & CTO
Ion Stoica - Co-founder & Chairman
Founded
2025
Stage Invested
Series A
Backed Since
2025
Status
Private
Lightspeed Team
Bucky Moore - Partner
James Alcorn - Partner
Ravi Mhatre - Partner & Co-Founder

Created by researchers from UC Berkeley, LMArena is an open platform where everyone can easily access, explore, and interact with the world’s leading AI models. By comparing them side by side and casting votes for the better response, the community helps shape a public leaderboard, making AI progress more transparent and grounded in real-world usage.

LMArena
Fraction Fraction

Faction Ventures, L.L.C. ("Faction") and Lightspeed Management Company, L.L.C. ("LSVP") are separate businesses that operate independently of each other. Faction advises its own fund(s) and does not advise any LSVP clients, and LSVP does not advise Faction or any of its clients. LSVP and Faction are parties to an agreement pursuant to which LSVP holds certain interests in Faction and the fund(s) Faction manages.

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INDIA INDIA

Lightspeed Management Company, L.L.C. ("LSVP") and Lightspeed India Partners, L.L.P. ("LSIP") are distinct investment advisory entities, are not a unitary enterprise and operate independently of one another. From time to time LSVP may draw on its relationship with LSIP, and vice versa, but only to the extent consistent with its status as a separate investment adviser.https://lsip.com/

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