JP-TL-Bench - Japanese to English - Easy: leaderboard

Easy Japanese-to-English items of JP-TL-Bench (Lin and Lensenmayer, Shisa.AI, 2026): 15 Japanese texts such as business call scripts, self-introductions, news items and help pages, translated into English and compared pairwise and reference-free against the frozen Base Set v1.0 anchor translations by gemini-2.5-flash. Bradley-Terry strength fitted on this slice alone, mapped to a 0-10 LT score; higher is better.

Metric: LT Score (0-10; Easy items only; anchored pairwise Bradley-Terry, gemini-2.5-flash judge). Source: arxiv.org. Saturation forecast: Estimated already saturated. 64 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3 Flash (Preview)9.94#141
2Ministral-3-14B-Instruct-25129.9#1595
3GPT-OSS-120B9.89#699
4Gemini 3 Pro (Preview)9.88#111
5DeepSeek V3.1 Terminus9.85#442
6Gemini 2.5 Flash9.83#452
7Qwen 3 235B A22B 2507 Instruct9.83#619
8Gemini 2.5 Pro9.79#262
9Kimi K2 09059.79#555
10Qwen 3 30B A3B 2507 Instruct9.7#1078
11GPT-4o (2024-08-06)9.59#731
12Gemma 3 27B (IT)9.54#1306
13NVIDIA-Nemotron-3-Nano-30B-A3B-BF169.47#1773
14Llama 3.1 405B Instruct9.05#1114
15Ling-flash-2.08.85#1352

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

Interactive version: theaggregate.ai/benchmark?slug=jp-tl-bench-japanese-to-english-easy · How It Works · Data refreshed daily, snapshot 2026-11-12.