ChatGPT
Chatbots & Assistants
OpenAI's all-round assistant for writing, images, research, voice chat, agents and study help.
Freemium
Arena (LMArena)
Chatbots & AssistantsFreeNo sign-up
About
Arena (renamed from LMArena in January 2026, and earlier known as Chatbot Arena) lets you compare answers from two anonymous AI models side by side and vote for the better one. The votes build a widely followed public leaderboard of AI models.
Key features
Blind side-by-side model comparison
Public leaderboards for text, vision, image and video
Direct chat with specific models
Free to use without an account
Best for
Comparing models for a taskTrying new models for freeChecking current AI rankings
Pricing & plans
Free to use. Check the official website for current terms.
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