Popular AI leaderboard Arena nearly doubles valuation to $3.1B valuation in 10 months

The company behind the LMArena leaderboard raised $200 million led by Lightspeed and Khosla, nearly doubling its valuation to $3.1 billion in 10 months. The platform now measures AI models on alignment issues such as lying, expanding beyond traditional performance benchmarks. The funding round signals growing investor interest in AI evaluation tools as models become more advanced.