Arena AIAI ToolboxArena AI is an online competition and chat platform for large language models, developed by a research team at the University of California, Berkeley. Users can submit a question for two anonymous models to answer simultaneously and then vote, specify two models for a side-by-side comparison, or interact with a single model. The platform updates model rankings based on conversation votes. It is suitable for algorithm researchers, prompt engineers, technology content creators, and users who want to compare model performance. The platform offers free access, but rankings are influenced by question types, language, participant preferences, and sample size, so they cannot replace professional testing for specific tasks.097.6All tools with this tag are shown.