Arena

Crowdsourced AI Model Evaluation Platform

Arena is a community-powered AI model evaluation and comparison platform where users interact with frontier models, vote on outputs, and contribute to public leaderboards grounded in real-world use. It includes Agent Arena/Agent Mode for evaluating agentic model performance on live tool-using tasks.

Recent stories

1 linked story

newsPRIMARY2026-06-04

Arena launches Agent Mode rankings with GPT-5.5 High leading

Arena shipped Agent Mode, a benchmark that lets models use web search, bash, file writing, image generation, and follow-up questions, then ranks them on five live-session signals. It matters because agent evals move from static task sets to real user workflows, with GPT-5.5 High currently leading the leaderboard.