AI writing tools have become an important assistant for content creators. By 2026, the capabilities of mainstream AI writing tools on the market have become quite mature, but each has its own strengths. This paper conducts a horizontal comparative test on ChatGPT, Claude, Tongyi Qianwen and ERNIE Bot.
##Testing dimensions and methods
We evaluate from six dimensions: creative writing ability (such as novel creation, advertising copy), practical writing ability (such as emails, reports), knowledge accuracy, Chinese expression ability, long text processing ability, and output stability. Use the same prompt words uniformly for test cases to ensure fairness in comparison as much as possible.
##Creative writing: Claude slightly outperforms
Claude's performance is most outstanding in creative writing tasks such as novel story creation, advertising slogans, and brand stories. Its writing is more literary, able to flexibly use rhetorical devices, and the narrative rhythm is well controlled. ChatGPT follows closely behind, with smooth creativity but not as diverse in style as Claude. Tongyi Qianwen and ERNIE Bot have performed well in Chinese creative writing, but their overall richness is slightly lower than that of foreign products.
##Practical Writing: Tongyi Qianwen Chinese Best
In practical writing tasks such as business emails, work reports, and academic abstracts, the Chinese expression of Tongyi Qianwen is the most authentic. It has an accurate grasp of common language and formal document formats in the Chinese workplace, and even outperforms ChatGPT and Claude in the Chinese context. ERNIE Bot's official document writing ability is also quite excellent, especially in government documents and standard report format.
##Accuracy of knowledge: each has its own advantages
In writing tasks that require citing facts and data, ChatGPT has the widest information coverage, while Claude performs the best in complex reasoning and logical coherence. Tongyi Qianwen has the highest accuracy in terms of local knowledge in China, such as policies, regulations, and industry standards.
##Comprehensive recommendation
Pursuing literary and creative expression, Claude is preferred. ChatGPT is the safest choice as it requires extensive information coverage and general writing skills. If mainly aimed at Chinese readers and domestic scenes, Tongyi Qianwen's comprehensive experience is the best. ERNIE Bot has unique advantages in government affairs and official documents.