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Breaking: Claude Opus 4 jumps to #1 in WebDev Arena! A strong comeback from Anthropic - Opus 4 and Sonnet 4 now on top of the chart, surpassing previous Claude 3.7 and matching Gemini 2.5 Pro. Massive congrats to Anthropic🔥

Image Editing just got real on LMArena 🖼️✨ Introducing Image Edit Arena: where AI editing models go head-to-head on your images. Upload, edit, vote. It's that simple. Who edits it best? You decide🫵 Learn how it works in thread 🧵

You can also share your image generations from LMArena in our monthly AI Generation Contests in the Discord. This month's theme is "Cozy Desk" 🥰discord.gg/NtYvnEmf55

Our latest Gemini 2.5 Pro update is now in preview. It’s better at coding, reasoning, science + math, shows improved performance across key benchmarks (AIDER Polyglot, GPQA, HLE to name a few), and leads lmarena.ai with a 24pt Elo score jump since the previous version. We also

“LMArena is an open community platform for testing and evaluating all the top AI models…you have the ability to not just interact with them, but to battle them against one another,” Anastasios Nikolas Angelopoulos, Co-Founder lmarena.ai, tells Bloomberg’s Rachel Metz at #BloombergTech.

“People come because they like seeing multiple opinions, multiple AIs, and comparing them… They’re really excited by the opportunity to look at some new models from the top providers that are pre-released,” Anastasios Nikolas Angelopoulos, Co-Founder lmarena.ai at #BloombergTech.

“Many use cases for AI are subjective, human preference is very important to evaluate that… our goal is to take this preference data and use it to extract out all the different components of why people prefer something,” Anastasios Nikolas Angelopoulos, Co-Founder lmarena.ai at #BloombergTech