Nejumi 4 - jaster (0-shot) - ALT English-to-Japanese: leaderboard

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

Top models

#ModelScore
1Claude Sonnet 4.5 (Thinking)92.62
2Kimi K3 (Max)92.6
3Gemini 3.5 Flash92.58
4Claude Opus 4.1 (Thinking)92.58
5Claude Sonnet 4.6 (Thinking)92.56
6Gemini 3.6 Flash92.54
7DeepSeek V4.1 Flash92.54
8Claude Opus 4 (Non-reasoning)92.54
9Gemini 3.1 Pro (Preview)92.52
10DeepSeek V3 (0324)92.5
11Kimi K3 (Thinking)92.5
12Grok 4.5 (High)92.49
13Claude Opus 4.5 (Non-reasoning)92.49
14GPT-4.192.48
15Claude Sonnet 4 (Thinking)92.48

Interactive version: theaggregate.ai/benchmark?slug=nejumi-4-jaster-0-shot-alt-english-to-japanese · How It Works · Data refreshed daily, snapshot 2026-09-19.