SpeakerSleuth - Discrimination: leaderboard

Speaker discrimination task of SpeakerSleuth (Lee, Pyo, Seo and Jo, Seoul National University, ACL 2026): with one of a speaker's five dialogue turns masked, an audio-language model picks which of three shuffled candidate clips (the original, a voice-converted similar speaker, a voice-converted opposite-gender speaker) belongs to the speaker. Accuracy in percent over 606 items, where chance is 33.3; higher is better.

Metric: Classification accuracy (%; 606 three-candidate items). Source: arxiv.org. Saturation forecast: Estimated already saturated. 12 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 2.5 Pro81.5#262
2Gemini 2.5 Flash75.6#452
3Gemini 2.5 Flash Lite46.5#958
4Qwen2.5-Omni-7B42.7#1797
5Phi-4 Multimodal Instruct39.9#3914
6Gemma 3n E4B37.1#3330

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=speakersleuth-discrimination · How It Works · Data refreshed daily, snapshot 2026-11-12.