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Arena

Free💬 AI Chat

Blind-vote AI model leaderboard and chatbot arena. It answers questions, writes, plans and brainstorms. Free to start.

What is Arena?

Arena, formerly LMArena and Chatbot Arena from UC Berkeley's LMSYS project, is a blind-vote Elo leaderboard where AI models compete head-to-head. It raised a $200M Series B in October 2026 at a $3.1B valuation.

Key features

Supports many languages
Helps with writing, planning and brainstorming
Natural, human-like conversations
Remembers context within chats

Pricing

Arena is Free — you can start at no cost. Pricing can change, so confirm on the official site before buying.

Pros & cons

✅ Free to use from the start
✅ Answers in seconds
✅ Works on web and mobile
⚠️ Fewer advanced features than paid rivals
⚠️ Occasional slowdowns at peak times
⚠️ Outputs should be double-checked for important work

Best Arena alternatives

Not sure Arena is right for you? Here are the closest alternatives in ai chat:

ChatGPTThe world's most popular AI chatbotFreemium → ClaudeAnthropic's smart AI assistantFreemium → GeminiGoogle's AI assistantFree → MuseMeta's personal AI assistantFree →

FAQs

Is Arena free?

Arena is free — you can start using it at no cost.

What is Arena used for?

Arena is used for ai chat — blind-vote AI model leaderboard and chatbot arena

What are the best alternatives to Arena?

Popular alternatives include ChatGPT, Claude, Gemini. Compare them above to find your fit.