Arena Secures $200M Series B at $3.1B Valuation and Adds AI Alignment Leaderboard
aiinsider ·
Arena, a crowdsourced AI model ranking platform originating from UC Berkeley, has secured $200 million in Series B funding at a $3.1 billion valuation. The investment round was led by Lightspeed Venture Partners and Khosla Ventures, with participation from major firms including Salesforce Ventures and a16z. This valuation nearly doubles the company's previous $1.7 billion assessment from its Series A ten months ago. Arena reported reaching $100 million in annualized revenue in June, a significant increase from $30 million during its earlier financing. The platform allows users to rate AI models based on prompts, drawing tens of millions of monthly visitors to its free consumer service. Additionally, Arena launched an AI Alignment Leaderboard to evaluate models on safety metrics such as unauthorized actions and deceptive completion. The company positions itself as a neutral third party necessary for measuring real-world model alignment amidst rapid AI advancements.
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