Swallow - Japanese MT-Bench - Reasoning: leaderboard

From the Swallow LLM Leaderboard: Japanese MT-Bench (Nejumi edition, v4 questions with corrected v2 reference answers), two-turn dialogues graded by GPT-5.2 against references; normalized 0-1 upstream, shown as 0-100, higher is better. This board covers the Reasoning category: questions requiring commonsense and logical reasoning.

Metric: Judge Score (normalized, %). Source: swallow-llm.github.io. Saturation forecast: Estimated already saturated. 68 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5 (Medium)85.1#105 (GPT-5)
2Qwen 3.5 27B (Thinking)84.7#192 (Qwen 3.5 27B)
3Gemma 4 31B (IT) (Thinking)84.4#178 (Gemma 4 31B (IT))
4Qwen 3.5 9B (Thinking)84.3#391 (Qwen 3.5 9B)
5GPT-OSS-Swallow-120B-RL-v0.1 (Thinking)83.2#309 (GPT-OSS-Swallow-120B-RL-v0.1)
6O3 (2025-04-16) (Medium)83.1#125 (O3 (2025-04-16))
7gemma-4-26B-A4B-it (Thinking)82.8
8GPT-5.4 (2026-03-05) (Medium)82.7#63 (GPT-5.4 (2026-03-05))
9Qwen 3 Next 80B A3B Instruct81.5#381
10Qwen 3.5 35B A3B (Thinking)81.4#268 (Qwen 3.5 35B A3B)
11Qwen 3 235B A22B 2507 (Thinking)81.1#263
12Qwen 3.5 122B A10B (Thinking)80.4#184 (Qwen 3.5 122B A10B)
13Qwen 3 235B A22B 2507 Instruct79.5#315
14O3 Mini (Medium)79.4#282 (O3 Mini)
15GPT-OSS-Swallow-20B-RL-v0.1 (Thinking)79.3#451 (GPT-OSS-Swallow-20B-RL-v0.1)

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=swallow-japanese-mt-bench-reasoning · How It Works · Data refreshed daily, snapshot 2026-11-05.