"In 2023, a group of researchers from the University of California, Berkeley, started Chatbot Arena, now called LMArena. It allows people to compare different AI models with prompts and determine which is better. Users can vote for how well models perform and compare them on a leaderboard. LMArena saw a tenfold traffic spike in August when a mysterious new AI text-to-image and image editing model, Nano Banana, went viral for churning out impressive images and photo edits."
"Based on user votes, Nano Banana ranked #1 on LMArena's image generation leaderboard. As many users guessed, Google was behind Nano Banana, which is Google's Gemini 2.5 Flash. Now, LMArena has over 3 million monthly users, says Wei-Lin Chiang, its CTO. Chiang cofounded LMArena along with Berkeley researchers Anastasios Angelopoulos, the CEO, and Ion Stoica, also a cofounder of $62 billion Databricks and $1 billion Anyscale."
LMArena began as a 2023 UC Berkeley research project originally named Chatbot Arena and now lets users compare AI models with prompts, vote on performance, and rank models on leaderboards. A viral new text-to-image model called Nano Banana produced a tenfold traffic spike and topped the image generation leaderboard based on user votes. Users later identified Nano Banana as Google’s Gemini 2.5 Flash. The platform reports over 3 million monthly users and was cofounded by Wei-Lin Chiang, Anastasios Angelopoulos, and Ion Stoica to provide an open, community-driven way to evaluate AI in real-world use cases.
Read at Business Insider
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