One Billion Dollars Cannot Buy AI Visibility

$1 Billion Can't Buy AI Visibility: What Windsurf, Claude Code, and Replit Reveal Windsurf raised over $1 billion. Replit has millions of users. Claude Code is built by the company that arguably invented modern AI. None of it mattered. We ran a two-day experiment tracking five AI coding assistants across seven AI models — GPT-4o, Claude, Gemini, Perplexity, and others — all answering the same prompt: "What is the best AI coding assistant in 2026?" The results were uncomfortable. The Numbers Don't Lie GitHub Copilot scored AAS 92.86. Mentioned by all 7 models. Every time. Consistent. Cursor came in second at AAS 72.77 — also appearing in all 7 models. The community darling is closing the gap fast. Then the cliff. Claude Code dropped from 37.50 on Day 1 to 16.07 on Day 2. It went from appearing in 4 out of 7 models to just 2. In 24 hours. Windsurf — formerly Codeium, fresh off a billion-dollar-plus raise — scored AAS 12.56, showing up in only 2 of 7 models. Replit: AAS 6.03. One model. O