Okay, so right now the WebDev leaderboard on LMArena is basically owned by the big three: Claude Opus 4.5 from Anthropic, GPT-5.2-codex (high) from OpenAI, and finally everybody's favorite, Gemini 3 Pro from Google.



So, I grabbed these three and put them into the same existing project (over 8K stars and 50K+ LOC) and asked them to build a...