Show HN: Airena – Client-side arena for comparing AI models across 68 providers (opens in new tab)

I made a tool to compare AI models side-by-side in real-time.

Pick models (GPT-5, Claude, Gemini, etc.), enter a prompt, and see responses in parallel. Fully client-side, no backend.

Demo: https://arena.jit.dev Code: https://github.com/andronov04/airena