Same theme-park prompt, three agents. Which one did Claude Code build: A, B or C?
Codex (GPT-6.1 Sol) — 3 min 7 s · $0.09
pi (Gemini 4 Argon) — 4 min 2 s · $0.54
Claude Code (Opus 5.5) — 4 min 55 s · $1.16
Reply with your guess, then watch the 7-second reveal.