Nejumi 4 - jaster (2-shot) - ALT Japanese-to-English: leaderboard

Metric: COMET wmt22 (x100). Source: nejumi.ai. 137 models tracked.

Top models

#ModelScore
1GPT-5.5 (xHigh)90.78
2GPT-5.6 Sol (Max)90.7
3Gemini 3.1 Pro (Preview)90.57
4GPT-5.6 Terra (Max)90.53
5Claude Opus 4.5 (Non-reasoning)90.49
6Claude Opus 4.7 (xHigh)90.47
7Claude Opus 4.5 (Thinking)90.4
8Claude Opus 5 (Max)90.39
9GPT-5.4 (xHigh)90.38
10Gemini 3.5 Flash90.37
11Claude Opus 4.6 (Thinking)90.37
12GPT-5.1 (Non-reasoning)90.36
13GPT-5.1 (High)90.34
14Gemini 3 Pro (Preview)90.32
15Claude Opus 4 (Non-reasoning)90.32

Interactive version: theaggregate.ai/benchmark?slug=nejumi-4-jaster-2-shot-alt-japanese-to-english · How It Works · Data refreshed daily, snapshot 2026-09-19.