Arena-Hard - release-reported (judge not official or not stated)
Chat & Writing
Arena-Hard(-Auto) win-rate style scores reported by a model release that does not use, or does not state, the official Arena-Hard-Auto v0.1 setup (GPT-4-Turbo judge against the GPT-4-0314 baseline); for example Mistral's GPT-4o-judged runs. Kept as a diagnostic because judge and baseline change the scale. Higher is better.