LMArena is a web-based platform that evaluates large language models (LLMs) through anonymous, crowd-sourced pairwise comparisons.
LMArena has raised $150.0M in total funding. The most recent round was Series A. The last funding was announced in January 2026.
LMArena's investors include Andreessen Horowitz, Lightspeed Venture Partners, Kleiner Perkins, Felicis, The House Fund.
LMArena is headquartered in San Francisco, United States.
LMArena is a web-based platform that evaluates large language models (LLMs) through anonymous, crowd-sourced pairwise comparisons.
LMArena is at the Series A stage.
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"LMArena — Funding & Investors." VCBacked, January 6, 2026, https://www.vcbacked.co/company/lmarena. Accessed July 19, 2026.
VCBacked. (2026). LMArena — Funding & Investors. Retrieved July 19, 2026, from https://www.vcbacked.co/company/lmarena
{{cite web |title=LMArena — Funding & Investors |url=https://www.vcbacked.co/company/lmarena |website=VCBacked |access-date=July 19, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated