CMI-RewardBench - CMI-Pref Alignment (With Audio Prompt): leaderboard

Metric: Pairwise accuracy (%) against the human instruction-alignment preference on the 250 CMI-Pref test pairs whose instruction includes a reference audio clip (text plus audio, and text plus lyrics plus audio; the mean of the two 125-pair subsets); the model is given the two clips (with the instruction) and must select the preferred one; the zero-shot audio LLMs are prompted to choose, the reward models compare their scalar scores; higher is better. Source: arxiv.org. Saturation forecast: Around January 2027. 7 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 2.5 Pro72.8#145
2Gemini 3 Pro66.8#77
3Gemini 2.5 Flash62#237

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=cmi-rewardbench-cmi-pref-alignment-with-audio-prompt · How It Works · Data refreshed daily, snapshot 2026-10-11.