ChineseErrorCorrector3-4B: State-of-the-Art Chinese Spelling and Grammar Corrector

TL;DR

ChineseErrorCorrector3-4B is a unified, state-of-the-art model based on Qwen3-4B that excels in Chinese spelling and grammar correction, outperforming existing models on multiple benchmarks.

Contribution

This paper presents ChineseErrorCorrector3-4B, a novel unified model that achieves top performance in Chinese spelling and grammatical error correction tasks.

Findings

Outperforms existing models on SIGHAN-2015, EC-LAW, MCSC, and NaCGEC datasets.

Achieves highest F1 and F0.5 scores in both spelling and grammatical correction.

Ranks first in Chinese error correction benchmarks.

Abstract

This paper introduces ChineseErrorCorrector3-4B, a unified model for Chinese spelling and grammatical error correction based on Qwen3-4B. The model demonstrates outstanding performance in general text correction tasks and achieves state-of-the-art results in both spelling correction (CSC) and grammatical correction (CGC). On several authoritative benchmark datasets -- including SIGHAN-2015, EC-LAW, MCSC, and NaCGEC -- the model's F1 and F0.5 scores significantly surpass existing publicly available models, ranking first in both spelling and grammatical error correction tasks.