DeepSeek Vs. ChatGPT: A Comparative Evaluation of AI Tools in Composition, Business Writing, and Communication Tasks

Abstract

This study presents a comparative evaluation of DeepSeek and ChatGPT, two AI-powered text generation models, in composition, business writing, and communication tasks. The article assesses AI-generated content based on clarity, coherence, adaptability, persuasiveness, and grammatical accuracy, with evaluations conducted by three expert instructors. The findings indicate that ChatGPT outperforms DeepSeek, particularly in linguistic variation, audience awareness, and dynamic content generation. ChatGPT demonstrates superior tone modulation, rhetorical adaptability, and engagement, making it more effective for persuasive messaging, business communication, and content creation. In contrast, DeepSeek excels in grammatical precision, structural organization, and factual consistency, making it a more reliable tool for formal reports and standardized business writing. The study also examines the strategies employed by both AI models, highlighting ChatGPT’s strength in customizing responses to different audiences and business contexts, while DeepSeek often follows a one-size-fits-all approach, resulting in rigid and impersonal writing. Although ChatGPT proves more adaptable, its responses occasionally require refinement for conciseness and formality, whereas DeepSeek would benefit from improvements in creativity, emotional intelligence, and flexibility. The findings underscore the broader implications of AI-driven writing tools in business, education, and professional communication. Organizations can maximize AI’s potential by leveraging ChatGPT for dynamic and persuasive communication while utilizing DeepSeek for structured, technical, and compliance-based writing. Future advancements should focus on enhancing AI adaptability, domain-specific customization, and ethical considerations in AI-generated content, ensuring effective integration into modern professional environments.