AI evaluation startup LMArena raises $150M at $1.7B valuation

AI evaluation startup LMArena has secured $150 million in Series A funding, achieving a $1.7 billion valuation. The company reported $30 million in annualized consumption revenue following the launch of its evals product in September. LMArena's platform, which hosts millions of user interactions, aims to serve as the definitive leaderboard for frontier AI models, assisting users in identifying the best models for real-world applications. The company plans to use the new funding for inference costs, platform development, and hiring talent. AI

RANK_REASON AI evaluation startup LMArena announced a $150 million Series A funding round at a $1.7 billion valuation, with $30 million in annualized consumption revenue.

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• Anastasios Angelopoulos
• a16z
• Anjney Midha
• Cohere
• Gemini Nano Banana
• Google
• Gradio
• Latent Space
• NeurIPS 2025

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