Persian Fluency Bench: leaderboard

How convincingly a model writes like a real Iranian across ten everyday domains in both casual spoken Tehrani and formal written register, judge-scored with translationese, robotic phrasing and AI self-references penalised. Overall score, higher is better. Source: github.com/mshojaei77/ParsiEval.

Metric: Judge Score (%, judge google/gemini-2.5-flash). Source: github.com. Saturation forecast: Around February 2027. 16 models tracked.

Top models

#ModelScoreOverall rank
1Qwen 3 30B A3B 2507 Instruct42.1#492
2Gemini 2.5 Flash39.1#255
3Gemma 3 12B (IT)37#672
4Qwen 3 Next 80B A3B Instruct35.5#381
5Gemma 3 4B (IT)34.6#997
6Gemma 3 27B (IT)32.9#528
7Gemma 3n E4B (IT)31.7#747
8granite-4.0-h-micro14.9#1078
9Qwen 3 4B10#834
10Llama 3.2 3B Instruct9.3#1327
11Ministral 3B8.4#1273
12Mixtral 8x7B Instruct6.3#1085
13lfm-2.2-6B4.1
14LFM2 8B A1B3.9#1248

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

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