A
ArenaCrowdsourced AI model evaluation platform, born as Chatbot Arena at UC Berkeley, that ranks LLMs via human-preference voting and sells deep-dive model evaluations to AI labs.
2 Pulse stories
UA
Upscale AIBuilds full-stack AI networking infrastructure to connect accelerators, memory, and storage into high-performance AI data center fabric.
2 Pulse stories
Total Raised
$250M
$500M
ArenaUpscale AI
Last Valuation
$1.7B
$2B
ArenaUpscale AI
AI infra
Sector
AI infra
2024
Founded
2025
San Francisco, California
HQ
Santa Clara, CA
Private
Status
Private
Arena investors
FelicisAndreessen HorowitzThe House FundLDVPKleiner PerkinsLightspeed Venture PartnersLaude VenturesUC Investments
Upscale AI investors
Premji InvestNvidiaSalesforce VenturesTemasekMayfieldTiger GlobalStepStone GroupMaverick Silicon
Data from Value Add Pulse coverage and company research — see the full threads for Arena and Upscale AI.