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

Hard Japanese-to-English items of JP-TL-Bench (Lin and Lensenmayer, Shisa.AI, 2026): 21 Japanese passages including classic literary prose, light-novel fiction, essays, news and recipes, 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; Hard 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 2.5 Pro9.99#262
2Gemini 3 Flash (Preview)9.99#141
3Gemini 3 Pro (Preview)9.98#111
4Qwen 3 235B A22B 2507 Instruct9.97#619
5GPT-OSS-120B9.95#699
6DeepSeek V3.1 Terminus9.93#442
7Kimi K2 09059.92#555
8Ministral-3-14B-Instruct-25129.89#1595
9Gemini 2.5 Flash9.88#452
10Qwen 3 30B A3B 2507 Instruct9.84#1078
11Gemma 3 27B (IT)9.77#1306
12GPT-4o (2024-08-06)9.74#731
13Ling-flash-2.09.19#1352
14ABEJA-Qwen2.5-32B-Japanese-v1.09.08#1304
15ELYZA-Shortcut-1.0-Qwen-32B8.94#1420

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-hard · How It Works · Data refreshed daily, snapshot 2026-11-12.