KVoiceBench - KAlpacaEval: leaderboard

Spoken Korean open-ended instructions transferred from AlpacaEval, also part of KOpenAudioBench, part of KVoiceBench (Kim et al., 2026). GPT-5.4 judge score on a 0-100 scale over 614 TTS-synthesized items; higher is better.

Metric: GPT-5.4 judge score (0-100; open-ended instructions transferred from AlpacaEval; the same score enters the KOpenAudioBench mean; Korean spoken questions synthesized with TTS; single run at temperature 0.7). Source: arxiv.org. Saturation forecast: Rough model projection: around 2026. 8 models tracked.

Top models

#ModelScoreOverall rank
1Raon-Speech65
2Fun-Audio-Chat61.4
3Qwen2.5-Omni56#1499
4HyperCLOVA X 8B Omni54.8
5MiniCPM-o 4.551.6
6Step-Audio-2-mini43.4
7Audio Flamingo 329.4
8InteractiveOmni26.8

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